User's Manual
Copyright © DENSO, 2000 All rights reserved. No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher. Specifications are subject to change without prior notice. All products and company names mentioned in this manual are trademarks or registered trademarks of their respective holders.
Preface Please READ through these operating instructions carefully. It will enable you to operate your BHT-7500/7500S correctly. After you have finished reading the instructions, keep this manual handy for speedy reference.
How this book is organized This manual is made up of five chapters and appendices. Chapter 1. Quick Guide Describes the basic operating method of the BHT-7500/7500S and the related notes. Chapter 2. Getting Started the BHT-7500/7500S and System Mode Summarizes the BHT-7500/7500S system configuration and describes the operation including preparation and System Mode (which is required for the efficient use of application programs). Chapter 3.
■ Technical Terms Used in This Manual Source Program and Object Program (User Program) Generally, a source program is translated into an object program by a compiler. This manual calls an object program a user program. BHT-BASIC This manual expresses BHT-BASIC3.0 and BHT-BASIC3.5 as BHT-BASIC.
SAFETY PRECAUTIONS Be sure to observe all these safety precautions. ■ Please READ through this manual carefully. It will enable you to use the BHT and CU correctly. ■ Always keep this manual nearby for speedy reference. Strict observance of these warning and caution indications are a MUST for preventing accidents which could result in bodily injury and substantial property damage.
WARNING Handling the battery cartridge • Never disassemble or heat the battery cartridge, nor put it into fire or water; doing so could cause battery-rupture or leakage of battery fluid, resulting in a fire or bodily injury. Never put me into fire! • Do not carry or store the battery cartridge together with metallic ball-point pens, necklaces, coins, hairpins, etc.
WARNING • Do not look into the laser beam source through the reading window or point the reading window towards the eyes. The laser beam emitted through the reading window is harmful to the eyes. • Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Handling the CU • If smoke, abnormal odors or noises come from the CU, immediately unplug the AC adapter from the wall socket and contact your nearest dealer.
CAUTION Basic handling tips I'm burning up! • Never put the BHT in places where there are excessively high temperatures, such as inside closed-up automobiles, or in places exposed to direct sunlight. Doing so could affect the housing or parts, resulting in a fire. • Avoid using the BHT in extremely humid or dusty areas, or where there are drastic temperature changes. This humidity is killing me! Moisture or dust will get into the BHT, resulting in malfunction, fire or electrical shock.
CAUTION • If you drop the BHT so as to damage its housing, immediately turn off the power, pull out the rechargeable battery cartridge or dry battery cartridge, and contact your nearest dealer. Do not drop me! Failure to do so could cause smoke or fire. • For those machines using the dry battery cartridge, do not mistake the plus and minus marks when loading dry cells into the cartridge.
CAUTION • Never cover or wrap up the CU or AC adapter in a cloth or blanket. Doing so could cause the unit to heat up inside, deforming its housing, resulting in a fire. Always use the CU and AC adapter in a well-ventilated area. • Do not place the CU anyplace where it may be subjected to oily smoke or steam, e.g., near a cooking range or humidifier. Doing so could result in a fire or electrical shock. • Keep the power cord away from any heating equipment.
■ Proper Care of the BHT and CU Clean the housings, battery cartridge terminals, and CU-7001 charge terminals with a dry, soft cloth. Before cleaning, be sure to turn the BHT power off and unplug the AC adapter of the CU. • • • • Never use benzene, alcohol, or other organic solvents. The housing may be marred or the paint may come off. Never rub or strike the liquid crystal display (LCD) with anything hard. The LCD surface will be easily scratched or broken.
BHT-7500 FCC Regulations This Device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
BHT-7500S FCC and RSS-210 Regulations This Device complies with Part 15 of the FCC Rules and RSS-210 Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC WARNING: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
Content Overviews Preface ................................................................................................................................. i How this book is organized .............................................................................................. ii SAFETY PRECAUTIONS ..................................................................................................... iv Chapter 1 Chapter 2 Quick Guide ......................................................................
5.3 5.4 Appendices Applying Power to the CU-7000 ........................................................................... 149 Communicating with the Host Computer ............................................................ 150 5.4.1 Setting the Transmission Speed of the CU-7000 ......................................... 150 5.4.2 Interface Cable Connection ............................................................................ 150 5.4.3 Interfacing with the Host Computer .....................
Chapter 1. Quick Guide Chapter 2. Getting Started the BHT-7500/7500S and System Mode Chapter 3. Communications Operations of the BHT-7500/7500S Chapter 4. Error Messages Chapter 5.
Chapter 1. Quick Guide Chapter 1 Quick Guide This chapter describes the basic operating method of the BHT-7500/7500S and the related notes. 1.1 Reading Bar Codes .................................................................................................... 2 1.2 Setting and Using the Hand Strap ........................................................................... 4 1.3 Setting the Backlight .................................................................................................
1.1 Reading Bar Codes Turn on the BHT power, bring the bar-code reading window to the bar code to be scanned, and press the trigger switch. The BHT emits a laser light to scan the bar code. When the BHT has read the bar code successfully, the indicator LED will illuminate in green. Bar code scanning range covered by the laser light Indicator LED Trigger switch (M4 key)* Max. 56 cm (22.0")** Trigger switch (M3 key)* PW key * The trigger switch function is assigned to both of the M3 and M4 keys by default.
Chapter 1. Quick Guide • Before reading bar codes, clean those labels if stained. • Avoid using the BHT in direct sunlight. The BHT might fail to read correctly. • To read bar codes on curved surfaces, apply the BHT to the target bar code so that the code comes to the center of the scanning range indicated by the laser beam. • When you pull the bar-code reading window away from bar codes, the actual scanning range will become narrower than the range covered by the laser beam.
1.2 Setting and Using the Hand Strap ■ Setting the hand strap ■ Using the hand strap Put your hand through the hand strap and hold the BHT as shown below. This will prevent you from dropping the BHT accidentally.
Chapter 1. Quick Guide 1.3 Setting the Backlight Pressing the M1 key while holding down SF (Shift) key activates or deactivates the backlight function. Backlight OFF (The backlight function is OFF when you turn the BHT power on.) Press M1 while holding down SF . SF Backlight ON Press M1 while holding down SF . M1 If no key is pressed for at least 3 seconds. Press any key (except for the simultaneous depression of M1 and SF ). Backlight OFF (The backlight function is kept ON.
1.4 Using the Keypad ■ Entering Numerical Data To enter numerical data, e.g., the quantity of goods, use the ten numerical keys and the ENT key. For example, to enter the number "120," press the 1 , 2 and 0 keys and then press the ENT key. If you key in any wrong value, press the C key or BS key ( SF + C keys) and then enter the correct one. ■ Selecting Tasks If the LCD shows the selection items (xxx) prefixed by numerals (e.g.
Chapter 1. Quick Guide 1.5 Transferring Data ■ Using radio link (BHT-7500S only) Using radio waves, the BHT-7500S may transfer data to an access point in a spreadspectrum communications system. If there are too many communications errors, first make sure that the BHT points directly at an access point because the 2.4-GHz band requires a more or less straight line path.
■ Using infrared link Using infrared rays, the BHT may transfer data directly to the host computer equipped with an IrDA interface port and other IrDA-compliant devices. • Make sure that there is no obstruction in the light path between the BHT and any target stations. In infrared communication, you need to keep the BHT and any target stations within the effective infrared radiation range, usually 10 to 80 cm (3.94 to 31.50").
Chapter 2. Getting Started the BHT-7500/7500S and System Mode Chapter 2 Getting Started the BHT-7500/7500S and System Mode This chapter summarizes the BHT-7500/7500S system configuration and describes the operation including preparation and System Mode (which is required for the efficient use of application programs). 2.1 BHT System Configuration ............................................................................................................ 10 2.2 Components and Functions ..................
2.1 BHT System Configuration The BHT barcode data collection system requires the following hardware as well as the BHT Bar Code Handy Terminal (which reads bar codes and accepts keypad entry), depending upon the intended system configuration. ● Host computer: Allows you to edit, manage and download programs and data, as well as downloading system programs. For host computers having no IrDA interface ports, the optional CU-7000 optical communications unit and RS-232C interface cable are available.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode In addition, the BHT-7500S may operate in a radio communications system (spreadspectrum communication) by connecting with access points by a wireless local area network (wireless LAN).
■ CU-7000 and RS-232C Interface Cable (option) The CU-7000 is an IrDA-compliant communications unit which is required when your host computer is not equipped with an IrDA interface port. The CU-7000 exchanges data and programs with the BHT-7500/7500S optically, and with the host computer via the RS-232C interface cable. You may directly connect two BHTs with each other by using a commercially available metal cable having 3-pole mini stereo plugs (as a direct-connect interface cable).
Chapter 2. Getting Started the BHT-7500/7500S and System Mode ■ Transfer Utility (option) Running on the host computer, this utility transfers files between the BHT and the host computer. For its file transfer control procedure, the utility uses the BHT-protocol. (For the details about the BHT-protocol, refer to Chapter 3, Subsection 3.5.1.
System Mode System Mode is a system program exclusively designed for the effective use of user programs in the BHT. It sets up the execution environments for those programs; e.g., it prepares downloading/uploading conditions, sets the calendar clock, and tests the BHT components including the LCD, beeper, and keypad. Shown below is the System Mode menu (SYSTEM MENU).
Chapter 2. Getting Started the BHT-7500/7500S and System Mode 2.2 Components and Functions Indicator LED Illuminates in green when the BHT has successfully read the bar code. Trigger switch (M4 key)* Press this switch to start bar-code reading. Alphanumeric keys Liquid crystal display (LCD) Shows the characters and graphic patterns. Trigger switch (M3 key)* Press this switch to start bar-code reading.
The functions of the keys may be set by user programs. Shown below is a set of sample functions. Status Indicators Battery voltage level Shows the current battery voltage level. If the voltage level is high, three bars appear; if low, a single bar appears. The displayed battery level shows the terminal voltage of the battery cartridge, not how much power is left. Keypad shift state SF Shows a bar when the keypad is shifted. Alphabet input ALP Shows a bar when the alphabet input function is activated.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode 2.3 Preparation 2.3.1 Setting-up 1: Loading the Battery Cartridge Before the first use of the BHT, be sure to load the battery cartridge as shown below. The battery cartridge is not loaded in the BHT when shipped from the factory. (1) Charge the rechargeable battery cartridge. (Refer to Section 5.5.) To use the dry battery cartridge in the BHT-7500, set two dry cells into the cartridge.
• Never charge the dry battery cartridge. • The BHT has an integrated backup power source which backs up the memory and calendar clock in the BHT when no battery cartridge is loaded or the voltage level of the battery cartridge drops below the specified level. The backup power source is automatically charged by the battery cartridge.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode ■ Low Battery Indication Low battery indication—Level 1 If the battery output voltage drops below a specified lower level limit while the BHT is in operation, the BHT displays the following Level 1 message for approx. 2 seconds and beeps three times. After that, it will resume previous regular operation. Battery voltage has lowered. The service life of the battery cartridge will expire soon.
• When replacing dry cells, always replace both of them with new alkaline manganese batteries (LR6). • You may charge the rechargeable battery cartridge with the optional CU-7001 communication unit or optional C-700/C-750 charger. For the charging procedure using the CU-7000, refer to Chapter 5. For that using the C-700/C-750, refer to the "C-700 User's Manual"/"C-750 User's Manual.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode 2.3.2 Setting-up 2: Setting the Calendar Clock Turn the BHT on by pressing the PW key. The following message will appear. Set the current date and time. 00/01/01 00:00 _ / / : In the following cases, the above message will appear. In such instances, it is necessary to set the date and time. (The indication "00/01/01 00:00" will differ depending upon the calendar clock state.) • The BHT is first turned on from the time of purchase.
SYSTEM MENU (1) While holding down the SF and 1 keys, press the PW key to start System Mode. The SYSTEM MENU shown at left will appear. (2) Press the 4 key to select the "SET SYSTEM" on the SYSTEM MENU and then press the ENT key, and the screen shown at left will appear.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode SET DATE/TIME 00/01/01 00:00 00/04/19 16:00_ SET DATE/TIME 00/04/19 _ / / [Example] To set 2000, April 19, at 4:00 p.m. Press 0 , 0 , 0 , 4 , 1 , 9 , 1 , 6 , 0 , and 0 . (5) Press the ENT key to register the above setting. (6) Press the C key to return to the SET SYSTEM screen.
2.3.3 Adjusting the LCD Contrast & Beeper Volume and Switching the Beeper & Vibrator While holding down the M1 or M4 key (trigger switch), press the PW key, and any of the following screens will appear on the LCD. This screen will disappear if no keys are pressed for five seconds.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode Adjusting the LCD contrast You can adjust the LCD brightness to eight contrast levels. 1) Use the or keys to select the LCD CONTRAST line. key; to increase it, press the 2) To decrease the contrast, press the key. Switching the beeper & vibrator You may choose any of three ways—beeping only, vibrating only, or beeping & vibrating as a confirmation of completion of bar-code reading.
2.3.4 Battery Voltage Display The battery voltage level is always displayed on the status indicator line (bottom line). Battery voltage level Shows the current battery voltage level. If the voltage level is high, three bars appear; if low, a single bar appears. Status Indicators The displayed battery level shows the terminal voltage of the battery, not how much power is left. The battery voltage level varies depending upon the operation of the BHT, so the displayed level also may vary. 2.3.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode 2.3.6 Battery Replacement Notes ■ When is battery replacement needed? If the "Charge the battery!" or "Replace the batteries!" appears on the LCD, replace the rechargeable battery cartridge with a fully charged one or replace the dry cells with new ones, respectively.
(2) When turning the BHT on after storage with no battery cartridge loaded: Even after removal of the battery cartridge, the calendar clock will work with the backup power source for a while. If the calendar clock backup has stopped, loading the battery cartridge and turning the BHT on will display the following message, prompting you to set the current date and time. Set the calendar clock according to the procedure given in Subsection 2.3.2.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode 2.3.7 BHT Turning-off Notes [ 1 ] "Shutdown in progress" message When the BHT is turned off by pressing the PW key or by the auto power-off feature, it displays the following message and starts preparation for shutdown. Shutdown in progress. Do not remove the battery. When the above message is displayed, do not remove the battery cartridge.
(1) Press the 2 key while holding down the SF key. The screen will switch to the following: Do you want to run Scandisk? 1.Yes (2) 2.No [ 1 ] YES: Run Scandisk and start the System. [ 2 ] NO: Turn the BHT off. Choose either one with the numerical keys and press the ENT key. When Scandisk is in progress, the following message is displayed: Scandisk is checking your drive for errors.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode If Scandisk finds an invalid file(s), the following screen will appear. As long as an invalid file exits, that screen displays every time the BHT System is started up. Scandisk found invalid files. Refer to the file "$$BRKLST.SYS" for more information. (3) Press the ENT key to start up the BHT System. ■ Scandisk when the resume function is enabled If Scandisk runs when the resume function is enabled, the screen given below may appear.
[ 3 ] About "$$BRKLST.SYS" If Scandisk finds an invalid file(s), it will automatically create the "$$BRKLST.SYS" file. To check the contents of the file, upload the file in System Mode to the host computer. (Refer to Subsection 2.5.3, "[ 3 ] Uploading.") Contents of the "$$BRKLST.SYS" file Records (1) File name (2) Error factor + (Broken since the BHT has not been turned off normally) * (Broken due to any other causes) (3) Broken records e.g.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode 2.4 Initializing the BHT-7500/7500S System Initializing the system will lose program files and data files stored in the user area and the system settings will revert to the factory defaults. You may delete font files by selecting the whole user area to be initialized. You need to initialize the system when: (1) you want to delete all of the program files and data files. (2) the following message appears. Contact your administrator.
(1) Selecting the memory area to be initialized INITIALIZE SYSTEM Press the PW key while holding down the SF , M1 and 0 keys together. 1:USER AREA EXCEPT FONTS The screen shown at left will appear. To initialize the user area except for the font file area, press the ENT key. The screen switches to the SELECT MESSAGE display given in step (2). To initialize the whole user area including the font file area, press the 2 key while holding down the SF key. The "2:WHOLE USER AREA" will appear.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode (3) Confirming the memory area selected for initialization INITIALIZE SYSTEM OK? 1:Yes 2:No Selecting the "USER AREA EXCEPT FONTS" in step (1) above will call up the confirmation screen shown at left. 1 Yes : Starts initialization. 2 No : Cancels initialization and turns the power off. Select a desired item by using the numerical keys, then press the ENT key. Pressing the C key will switch the screen back to the area selection screen.
(5) Completion of initialization INITIALIZE SYSTEM Upon completion of the initialization, the BHT displays the screen shown at left for a second and turns itself off automatically. ** Completed ** • Do not turn the BHT off until the above initialization completion screen appears. A too-early powering-off will interrupt initialization, requiring you to initialize the BHT again. • If the message "Contact your administrator. Note the error number.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode 2.5 Operating in System Mode System Mode is an operating software exclusively designed for the effective use of the BHT, which includes various functions as shown on the following pages. 2.5.1 Starting System Mode To start up System Mode, turn the BHT power on while holding down the SF and 1 keys. This operation calls up the SYSTEM MENU on the LCD as shown below.
■ Structure of System Mode SYSTEM MENU 1:EXECUTE PROGRAM SYSTEM MENU ⇐ Press the PW key while holding down the SF and 1 keys. 2:DOWNLOAD 3:UPLOAD 4:SET SYSTEM 5:TEST 6:VERSION ("7:FTP" and "8:RF" supported by the BHT7500S only) 7:FTP 8:RF Program Execution Allows you to select a desired user program to be executed immediately. (Refer to Subsection 2.5.3, [ 1 ].) EXECUTE PROGRAM 1 and ENT SAMPLE01.PD3 SAMPLE02.PD3 SAMPLE03.PD3 SAMPLE04.PD3 SAMPLE05.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode TEST 1:BARCODE 5 and ENT 2:MEMORY 3:BEEPER 4:AGING 5:COMMUNICATION 6:LCD 7:KEY & VIBRATION Testing Used for the bar-code reading test, memory test, beeper test, aging test, communications test, LCD indication test, indicator LED test, key-entry test, vibrator test, file test, and execution of PING (BHT-7500S only). (Refer to Subsection 2.5.3, [ 5 ].
In addition to the functions given on the previous page, System Mode has these five functions: Deleting files, Downloading/uploading the BHT system parameter file, Setting the remote wakeup parameters, Setting the CPU performance and Downloading/ uploading the system message file. To call up these functions, press the 0 , 3 , 4 , 5 or 6 key, respectively, while holding down the SF key when the SYSTEM MENU is displayed.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode SET THE CPU PERFORMANCE 5 with SF held down 1:Regular 2:High Downloading/uploading the system message file Downloads or uploads the system message file. (Refer to Subsection 2.5.3, [ 13 ].) SYSTEM MESSAGE 1:DOWNLOAD 6 with SF held down Setting the CPU performance Sets the CPU performance to Regular or High. (Refer to Subsection 2.5.3, [ 12 ].
2.5.2 Operating in System Mode Some functions in System Mode require several screens to be shifted, as shown in the example below. [ 1 ] Calling up the desired set screen First, select a desired item on the current screen by using the numerical key or the cursor keys ( and ) so as to highlight the desired item. Press the ENT key to establish the selected item and proceed to the subsequent screen. To return to the preceding screen, press the C key.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [ 2 ] Selecting a desired setting First, select a desired item on the current screen by using the numerical key or the cursor keys ( and ) so as to highlight the desired item. Use the and keys to select a desired setting and then press the ENT key. The screen returns to the previous selection screen. Press 2 or use and the desired set item. Use and setting.
2.5.3 Detailed Description of the Functions in System Mode [ 1 ] Program Execution EXECUTE PROGRAM SAMPLE01.PD3 SAMPLE02.PD3 SAMPLE03.PD3 SAMPLE04.PD3 SAMPLE05.PD3 SAMPLE06.PD3 SAMPLE07.PD3 SAMPLE08.PD3 SAMPLE09.PD3 SAMPLE10.PD3 SAMPLE11.PD3 SAMPLE12.PD3 SAMPLE13.PD3 SAMPLE14.PD3 SAMPLE15.PD3 SAMPLE16.PD3 SAMPLE17.PD3 EXECUTE PROGRAM SAMPLE01.PD3 SAMPLE02.PD3 SAMPLE03.PD3 SAMPLE04.PD3 SAMPLE05.PD3 SAMPLE06.PD3 SAMPLE07.PD3 SAMPLE08.PD3 SAMPLE09.PD3 SAMPLE10.PD3 SAMPLE11.PD3 SAMPLE12.PD3 SAMPLE13.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode ⇓ EXECUTE PROGRAM SAMPLE05.PD3 SAMPLE06.PD3 SAMPLE07.PD3 SAMPLE08.PD3 SAMPLE09.PD3 SAMPLE10.PD3 SAMPLE11.PD3 SAMPLE12.PD3 SAMPLE13.PD3 SAMPLE14.PD3 SAMPLE15.PD3 SAMPLE16.PD3 SAMPLE17.PD3 SAMPLE18.PD3 SAMPLE19.PD3 SAMPLE20.PD3 SAMPLE21.PD3 EXECUTE PROGRAM ****************** * NO FILE EXISTS * ****************** In the example shown at left, 21 programs are downloaded. If no program file is downloaded, the message shown at left will appear.
[ 2 ] Downloading If you download a file having the same name as one already used in the user area of the target memory in the BHT, the newly downloaded file replaces the old one. DOWNLOAD Selecting "2: DOWNLOAD" on the SYSTEM MENU calls up the screen shown at left. 1:FILE 2:HT<-->HT COPY 1 FILE : Downloads a user program file or data file to the user area of the BHT. 2 HT<-->HT COPY : Downloads all of the files, system parameters, and calendar clock data stored in the connected BHT.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode Download screens DOWNLOAD FILE ** Waiting ** With this screen displayed, the BHT waits for a file to be downloaded. If you select "2:HT<-->HT" on the DOWNLOAD menu, the "HT<-->HT" will appear in the center of the 2nd line. If you select "1:FILE," nothing will appear on the 2nd line. The screen at left shows that "1:FILE" has been selected.
If an error occurs during downloading If some error occurs during downloading, the BHT beeps three times and shows one of the following screens with the prompt "Retry?": To retry the download, press the 1 and ENT keys; to abort it, press the 2 and ENT keys. DOWNLOAD FILE Out of memory!! Retry? 1:Yes 2:No ■ Problem The memory is insufficient for storing files to be downloaded.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode DOWNLOAD FILE XXXXXXXX.XXX Program file error!! Retry? 1:Yes 2:No ■ Problem You attempted to download an invalid program file. ■ Solution Check whether the program file you attempted to download is available to your BHT model. If it is not available, download the appropriate program.
[ 3 ] Uploading UPLOAD 1:ONE FILE 2:ALL FILES Selecting "3: UPLOAD" on the SYSTEM MENU calls up the screen shown at left. 1 ONE FILE : Uploads a user program file or data file stored in the memory. 2 ALL FILES : Uploads all user program files (object programs) and all data files stored in the memory. 3:HT<-->HT COPY 3 HT<-->HT COPY : Uploads all of the files, system parameters, and calendar clock data stored in the BHT, to another BHT. This function enables copying between the BHTs.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode UPLOAD FILE ****************** * NO FILE EXISTS * ****************** If you select "1:ONE FILE" or "2:ALL FILES" on the UPLOAD menu when no files are stored in the memory, the message shown at left will appear. Pressing the C key returns to the UPLOAD menu.
UPLOAD FILE SAMPLE01.PD3 ** Completed ** Upon completion of uploading, the number of sent records becomes equal to the total number of records and the beeper beeps once. Press the C key to return to the UPLOAD menu. If you have selected "2:ALL FILES" or "3:HT<-->HT COPY" on the UPLOAD menu, a sequence of the above screens will be repeated by the number of files to be uploaded.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [ 4 ] System Environment Setting SET SYSTEM 1:EXECUTE PROGRAM Selecting "4: SET SYSTEM" on the SYSTEM MENU calls up the screen shown at left. 2:DISPLAY 3:DATE/TIME 4:BARCODE 5:COMMUNICATION 1 EXECUTE PROGRAM : Sets an execution program to be run when the power is turned on. 6:KEY 7:RESUME 2 DISPLAY : Sets the message version (English or Japanese). 3 DATE/TIME : Sets the calendar clock (date and time).
[4.1] Setting an execution program SET EXECUTE PROGRAM EASYPACK.PD3 SAMPLE1.PD3 SAMPLE2.PD3 SAMPLE3.PD3 SAMPLE4.PD3 Selecting "1: EXECUTE PROGRAM" on the SET SYSTEM menu calls up the screen shown at left. Highlighted is the current setting. Use the and keys to move the cursor to a desired execution program to be run when the power is applied, and then press the ENT key. To return to the SET SYSTEM menu, press the C key.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [4.2] Setting the message version SET DISPLAY Selecting "2: DISPLAY" on the SET SYSTEM menu calls up the screen shown at left. 1:MESSAGE English Japanese Highlighted is the current setting. 1 MESSAGE: Switches the message version to English or Japanese for system error messages and indications on the LCD contrast, beeper volume, and beeper & vibrator switching screen.
[4.3] Setting the calendar clock SET DATE/TIME 00/01/01 _ / / 00:00 : Selecting "3:DATE/TIME" on the SET SYSTEM menu calls up the screen shown at left. Use the numerical keys to enter the year (only the last two digits), month, day, hour, and minute in this order, and then press the ENT key. If the data is in one digit, add a 0 (zero) preceding the data. For the year, be sure to enter the last two digits of the year. For the hour, enter it in the 24-hour format.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [4.4] Setting the special bar-code scanning parameters SET BARCODE 1:INVERT ON OFF 2:DECODE LEVEL x MINIMUM DIGITS Selecting "4: BARCODE" on the SET SYSTEM menu calls up the screen shown at left. Highlighted is the current setting. 1 INVERT 3:ITF xx 4:STF xx 5:CODABAR xx : Activates or deactivates the black-and-white inverted label reading function. 2 DECODE LEVEL : Sets the decode level.
Minimum number of digits to be read for ITF, STF, or Codabar (MINIMUM DIGITS) You may set the minimum number of digits to be read for ITF, STF, and Codabar. Setting a small number of digits increases the frequency of digit-missing reading or misreading depending upon how to scan bar codes or the quality of bar codes. On the other hand, setting a large number will diminish the possibility of those errors. The setting range is from 2 to 20 for ITF, from 1 to 20 for STF, and from 3 to 20 for Codabar.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [4.5] Setting the communications environments After the BHT is initialized, the interface port and communications parameters are set as listed in the default table below. Do not access them unless necessary. Interface port Optical (Optical interface port) Communications protocol BHT-protocol Defaults Communications parameters for the optical interface port TRANSMIT SPEED 9600 bps PROTOCOL (Protocol options) SERIAL No.
SET COMMUNICATION 1:OPTICAL 2:CONNECTOR 3:COM PORT Selecting the "5: COMMUNICATION" on the SET SYSTEM menu calls up the screen shown at left. 1 OPTICAL: Switches to the communications parameters setting screen for the optical interface. 2 CONNECTOR: Switches to the communications parameters setting screen for the direct-connect interface. 3 COM PORT: Switches to the interface port setting screen. 4 PROTOCOL TYPE: Switches to the communications protocol type setting screen.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode (1) Communications parameters setting screen SET PARAMETER < OPTICAL > Selecting "1:PARAMETER" on the SET OPTICAL screen calls up the screen shown at left. 1:TRANSMIT SPEED: 2400 38400 9600 19200 57600 115200 Highlighted is the current setting. Select the desired transmission speed by using the numerical keys or and keys, and then press the ENT key. To return to the SET OPTICAL screen, press the C key.
[4.5-2] Setting the communications parameters for the direct-connect interface SET CONNECTOR 1:PARAMETER 2:PROTOCOL Selecting "2:CONNECTOR" on the SET COMMUNICATION menu calls up the screen shown at left. 1 PARAMETER: Switches to the communications parameters setting screen. 2 PROTOCOL: Switches to the communications protocol option screen. Select a desired screen by using the numerical and keys, and then press the keys or ENT key. To return to the SET COMMUNICATION menu, press the C key.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode (2) Communications protocol option screen SET PROTOCOL < CONNECTOR > 1:SERIAL No. : ON OFF 2:H.PARITY ON OFF : Selecting "2:PROTOCOL" on the SET CONNECTOR screen calls up the screen shown at left. Highlighted is the current setting. 3:LINKUP TIME: None 30 60 90 120 1 SERIAL No.: Selects whether or not the system will add serial numbers to data blocks. 2 H. PARITY: Selects whether or not the system will add a horizontal parity.
[4.5-3] Setting the interface port SET COM DEFAULT PORT 1:BASIC Optical Connector Selecting the "3:COM PORT" on the SET COMMUNICATION menu calls up the screen shown at left. Highlighted is the current setting. 2:SYSTEM MODE Optical Connector 1 BASIC: Selects the optical or directconnect interface port to be used for user programs written in BHT-BASIC (OPEN "COM:"). 2 SYSTEM MODE: Selects the optical or directconnect interface port to be used for downloading or uploading files in System Mode.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [4.5-4] Setting the communications protocol type PROTOCOL TYPE 1:BHT Protocol Selecting the "4:PROTOCOL TYPE" on the SET COMMUNICATION menu calls up the screen shown at left. 2:BHT-Ir Protocol Highlighted is the current setting. 1 BHT Protocol: Selects the BHT-protocol for downloading or uploading files in System Mode or for the execution of XFILE statement in BHT-BASIC.
SET ID 00001 >> _ Selecting the "2:BHT-Ir Protocol" on the PROTOCOL TYPE screen calls up the screen shown at left. Enter the ID number of the BHT by using the numerical keys, and then press the ENT key. If you do not need to modify the current setting, press the ENT key only. An ID number should be five-digit decimal character string. The entry range is from 00001 to 65535. If the entry value is less than five digits, the ENT key will be deactivated.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [4.6] Defining the functions of the shift key and magic keys SET KEY 1:SHIFT KEY 2:M1 KEY Selecting the "6:KEY" on the SET SYSTEM menu calls up the screen shown at left. Highlighted is the current setting. 3:M2 KEY 4:M3 KEY 1 SHIFT KEY: Switches to the shift key definition screen. 2 M1 KEY: Switches to the M1 key definition screen. 3 M2 KEY: Switches to the M2 key definition screen.
Defining the function of M1 , M2 , M3 (left-hand trigger switch), or M4 (right-hand trigger switch) key SET M3 KEY 3:Shift Key Selecting the "2:M1 KEY," "3:M2 KEY," "4:M3 KEY" or "5:M4 KEY" on the SET KEY menu calls up the screen as shown at left. (This example appears when the "4:M3 KEY" is selected.) 4:Enter Key Highlighted is the current setting. 1:None 2:Trigger Switch 5:Backlight Key The M1 , M2 , M3 or M4 key can function as listed below. 1 None: The key entry will be ignored.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [4.7] Setting the resume function SET RESUME 1:ON 2:OFF Selecting "7: RESUME" on the SET SYSTEM menu calls up the screen shown at left. Highlighted is the current setting. 1 ON : Activates the resume function which resumes the current BHT status when the BHT power was turned off, when the BHT is switched on. 2 OFF : Deactivates the resume function. Select a desired item by using the numerical keys or and keys, and then press the ENT key.
[4.8-1] Setting the TCP/IP SET ADDRESS 1:IP ADDRESS [XXX.XXX.XXX.XXX ] 2:SUBNET MASK [YYY.YYY.YYY.YYY ] 3:DEFAULT GATEWAY [ZZZ.ZZZ.ZZZ.ZZZ ] Selecting "1:SET TCP/IP" on the SET TCP/IP menu calls up the screen shown at left where the current settings are displayed. Select a desired item by using the numerical keys or and keys, and then press the ENT key. The entry box of the selected item becomes ready to accept entry and shows a cursor.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [4.8-2] Setting the FTP SET FTP Selecting "2:SET FTP" on the SET TCP/IP menu calls up the screen shown at left. 1:SERVER 2:OPTION 1 SERVER : Switches to the FTP server connection environments screen. 2 OPTION : Switches to the data transfer parameters screen. Select a desired item by using the numerical keys and keys, and then press the ENT key. or To return to the SET TCP/IP menu, press the C key.
(2) FTP options screen SET OPTION 1:CR/LF CR-LF LF CR None Selecting "2:OPTION" on the SET FTP menu calls up the screen shown at left where the current settings are displayed. 2:CR/LF CODE PROPERTY Control code Data 1 CR/LF 3:FIELD SPACE Ignore Data 4:UPLOAD MODE Overwrite : Specifies line delimiters that should match ones used in the server OS.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [ 5 ] Testing TEST 1:BARCODE Selecting "5:TEST" on the SYSTEM MENU calls up the screen shown at left. 2:MEMORY 3:BEEPER 4:AGING 5:COMMUNICATION 6:LCD 1 BARCODE : Selects the bar-code reading test. 2 MEMORY : Selects the RAM read/write test. 3 BEEPER : Selects the beeper scale test. 4 AGING : Selects the aging test. 7:KEY & VIBRATION 8:FILE 9:PING ("9:PING" supported by the BHT7500S only) 5 COMMUNICATION : Selects the communications test.
[5.1] Bar-code reading test TEST BARCODE Selecting "1: BARCODE" on the TEST menu calls up the screen shown at left. Actually read bar codes with the BHT and check the read data displayed on the LCD. ⇓ Bar-code type Number of digits of the bar code TEST BARCODE A 13 4999999999999 Upon completion of bar-code reading, the BHT beeps, turns on the indicator LED in green, and displays the read data together with the bar-code type and the number of data digits.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [5.2] Memory test TEST MEMORY ** Testing ** XXXXX/YYYYY Selecting "2:MEMORY" on the TEST menu calls up the screen shown at left, and then starts writing and reading onto/from all areas of the RAM as well as checking the address.
[5.3] Beeper scale test TEST BEEPER Selecting "3:BEEPER" on the TEST menu calls up the screen shown at left and makes the beeper sound at three octaves listed below. Upon completion of this test, the BHT automatically returns to the TEST menu. To stop this test while in progress, turn the power off and on. Scale [5.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [5.5] Communications test In System Mode, you may test the optical interface port and direct-connect interface port. ■ Preparation for the optical interface test Arrange two BHTs, one as a master station and the other as a slave station (to be tested) with their IR ports facing each other as illustrated below. In this test, the slave BHT transmits data to the master BHT and receives the data sent back from the master BHT.
Testing the optical interface port TEST COMMUNICATION < OPTICAL > 1:SLAVE 2:MASTER TEST COMMUNICATION < OPTICAL > Selecting the "1:OPTICAL" on the TEST COMMUNICATION menu calls up the screen shown at left. At the slave BHT to be tested, select the "1:SLAVE" and at the master BHT, select the "2:MASTER." Then press the ENT key on each BHT. During the test, the screen shown at left is displayed.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode TEST COMMUNICATION < OPTICAL > ** Test OK ** Upon normal completion of the test, the tested slave BHT beeps once and shows the screen at left. Press the C key to return to the TEST COMMUNICATION menu. The master BHT will automatically return to the TEST COMMUNICATION menu.
TEST COMMUNICATION < CONNECTOR > Press the C key to return to the TEST COMMUNICATION menu. ** Test OK ** [5.6] Upon normal completion of the test, the BHT beeps once and shows the screen at left. LCD and indicator LED tests Selecting "6:LCD" on the TEST menu calls up the test pattern shown at left on the LCD and turns on the indicator LED in green. Each time the ENT key is pressed, the screen shifts to the next test pattern. To return to the previous screen, press the BS key ( SF + C keys).
Chapter 2. Getting Started the BHT-7500/7500S and System Mode The checker pattern shown at left appears and the indicator LED goes off. BS key ⇑ ⇓ ENT key The checker pattern is reversed. BS key ⇑ ⇓ ENT key An outline with a width of one dot appears.
The fine checker pattern appears. BS key ⇑ ⇓ ENT key The fine checker pattern is reversed. BS key ⇑ ⇓ ENT key Four right-angled triangles appear. Press the ENT key, and the BHT beeps once and returns to the TEST menu.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [5.7] Key entry & beeper test TEST KEY & BEEPER & VIBRATION Selecting "7:KEY & VIBRATION" on the TEST menu calls up the screen shown at left and makes the BHT ready for entry from the keypad. Pressing individual keys displays the identifier letters in the positions pre-assigned to those keys on the LCD as well as sounding the beeper or running the vibrator. (As long as the individual key is held down, the BHT continues beeping or vibrating.
[5.8] File test TEST FILE SAMPLE01.PD3 *SAMPLE02.PD3 SAMPLE03.PD3 SAMPLE04.PD3 +SAMPLE05.PD3 SAMPLE06.PD3 SAMPLE07.PD3 SAMPLE08.PD3 SAMPLE09.PD3 SAMPLE10.PD3 SAMPLE11.PD3 SAMPLE12.PD3 SAMPLE13.PD3 SAMPLE14.PD3 SIZE:XXXXX FREE:YYYYY Selecting "8:FILE" on the TEST menu calls up the screen shown at left. If any of the files stored in the memory is defective, an asterisk (*) or plus sign (+) will be prefixed to the defective file name(s). For details about the (*) and (+), refer to Subsection 2.3.7, [ 3 ].
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [5.9] PING (BHT-7500S only) Selecting "9:PING" on the TEST menu calls up the screen shown at left. TEST PING 1:RUN PING 2:SET PING 1 RUN PING : Runs PING. 2 SET PING : Switches to the PING parameter setting screen. Select a desired item by using the numerical keys or and keys, and then press the ENT key. To return to the TEST menu, press the C key. (1) Running PING (No.-of-echo requests entry screen) RUN PING DESTINATION IP XXX.XXX.XXX.
PING run-time messages (that will appear in the middle of the LCD) Message Displays when: Waiting Setting up PING. Opening TCP/IP Opening devices. Routing TCP/IP Connecting to the TCP/IP communications pathway. PING start Starting PING. Device error Failed to open a device. TCP/IP error Failed to connect to the TCP/IP communications pathway. PING termination messages (that will appear in the bottom of the LCD) Message Displays when: PING end PING has ended normally.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode If you select one of "1:DESTINATION IP" through "5:COUNT" items and press the ENT key, then the entry box of that item becomes ready to accept entry and a cursor appears. Enter the desired value by using the numerical keys and then press the ENT key. In the entry mode, to delete a single character, press the BS key ( SF + C keys). To delete the whole entry you made, press the C key.
PING Echo Request Send Timing (SEND TYPE) Two types of echo request send timings are available: TYPE 1 and TYPE 2. ■ TYPE 1 After sending an echo request, PING will wait for the period specified by INTERVAL and then send an echo request again. For TYPE 1, the relationship between the INTERVAL and TIMEOUT should be "INTERVAL ≥ TIMEOUT.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [ 6 ] System Information SYSTEM INFORMATION SYSTEM Ver. : x.xx ROM SIZE : XMB RAM SIZE : XMB SYSTEM MESSAGE : Japanese x.xx FONT Press the C key to return to the SYSTEM MENU. : JIS1(16) JIS2(16) JIS1(12) JIS2(12) Selecting the "6:VERSION" on the SYSTEM MENU calls up the screen shown at left, displaying the system program version, ROM and RAM sizes, system message version, and JIS font types and their versions. x.xx x.xx x.xx x.
[ 7 ] Downloading/Uploading by FTP (BHT-7500S only) FTP MENU 1:DOWNLOAD Selecting "7:FTP" on the SYSTEM MENU calls up the screen shown at left. 1 DOWNLOAD : Downloads a file by FTP. 2:UPLOAD 2 UPLOAD : Uploads a file(s) by FTP. Select a desired item by using the numerical keys or and keys, and then press the ENT key. To return to the SET SYSTEM menu, press the C key. [7.1] Downloading by FTP DOWNLOAD FILE SERVER IP:XXX.XXX.XXX.XXX CURRENT DIRECTORY: ...
Chapter 2. Getting Started the BHT-7500/7500S and System Mode DIR/FILE entry box: The FTP client will interpret a character string entered into this box as a directory name at first , so it will send a Change Directory request to the FTP server. If the specified directory exists in the FTP server, the server will change a directory from the default to that specified one; if not, the FTP client will interpret the entered character string as a file name and send a Download request to the server.
UPLOAD FILE SAMPLE01.DAT SAMPLE02.DAT SAMPLE03.DAT SAMPLE04.DAT SAMPLE05.DAT SAMPLE06.DAT SAMPLE07.DAT SAMPLE08.DAT SAMPLE09.DAT SAMPLE10.DAT SAMPLE11.DAT SAMPLE12.DAT SAMPLE13.DAT SAMPLE14.DAT SAMPLE15.DAT If you select "2:SELECT FILE," the screen shown at left will appear. Choose a file to be uploaded by using the and keys, then press the ENT key. The screen returns to the previous one where the selected file displays in the SELECT FILE entry box.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode Run-time messages in downloading/uploading by FTP When the BHT is uploading or downloading files by FTP, the following messages may appear in the bottom of the LCD: Messages Displays when: Aborted. Uploading or downloading is interrupted. Connection error The communications pathway is disconnected. Device error Failed to open a device. Downloading Downloading starts. Download failed Downloading has abnormally ended.
Reply codes from the FTP server The messages that FTP servers send during and after FTP operations vary, but servers all use the same reply codes as listed below. Reply codes 110 120 125 150 200 202 211 212 213 214 215 220 221 225 226 227 230 250 257 331 332 350 421 425 426 450 451 452 500 501 502 503 504 530 532 550 551 552 553 Description Restart marker reply. Service ready in nnn minutes. Data connection already open; transfer starting. File status okay; about to open data connection. Command okay.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [ 8 ] RF Menu (BHT-7500S only) Selecting "8:RF" on the SYSTEM MENU calls up the screen shown at left. RF MENU 1:SET ID 2:VERSION 1 SET ID : Switches to the ID entry screen. 2 VERSION : Switches to the RF version screen. Select a desired item by using the numerical keys or and keys, and then press the ENT key. To return to the SYSTEM MENU, press the C key. [8.
Shown at left is an entry sample screen where a security ID is DENSO. SET ID 1:DOMAIN 0 2:SECURITY ID [DENSO ] After entry, press the ENT key. Instead of the "DENSO" entered, 20 asterisks will display. Pressing the SF key switches the entry mode between the numeric mode (without a guidance) and alphabet mode. In the entry mode, to delete a single character, press the BS key ( SF + C keys). To delete the whole entry you made, press the C key.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [8.2] RF version screen SUB SYSTEM VERSION Vx.x MACID [001122334455] Selecting "2:VERSION" on the RF MENU displays the "** Loading **" while the system is getting information about the wireless module. After that, the screen shown at left will appear. Vx.x Firmware version of the wirelsss module MACID MACID of the wireless module To return to the RF MENU, press the C key.
[ 9 ] Deleting Files You may delete a program file or data file stored in the memory. File deletion menu DELETE FILE SAMPLE01.PD3 SAMPLE02.PD3 SAMPLE03.PD3 SAMPLE04.PD3 SAMPLE05.PD3 SAMPLE06.PD3 SAMPLE07.PD3 SAMPLE08.PD3 SAMPLE09.PD3 SAMPLE10.PD3 SAMPLE11.PD3 SAMPLE12.PD3 SAMPLE13.PD3 SAMPLE14.PD3 SAMPLE15.PD3 DELETE FILE ****************** * NO FILE EXISTS * ****************** Pressing the 0 key while holding down the SF key on the SYSTEM MENU calls up the screen shown at left.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode Deletion completion screen DELETE FILE Upon completion of deletion, the screen shown at left appears. ** Completed ** Press the C key to return to the file deletion menu.
[ 10 ] Downloading/Uploading the BHT System Parameter File SYSTEM PARAMETER transfer menu SYSTEM PARAMETER 1:DOWNLOAD 2:UPLOAD Pressing the 3 key while holding down the SF key on the SYSTEM MENU calls up the screen shown at left. 1 DOWNLOAD: Downloads the BHT system parameter file to the user area of the BHT. 2 UPLOAD: Uploads the BHT system parameter file stored in the BHT. Select a desired item by using the numerical keys or and keys, then press the ENT key.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode DOWNLOAD __BHT.SYS ** Completed ** Upon completion of downloading, the BHT displays the screen shown at left and beeps once. Press the C key to return to the SYSTEM PARAMETER transfer menu. If an error occurs during downloading If some error occurs during downloading, the BHT beeps three times and shows one of the following screens with the prompt "Retry?": To retry the download, press the 1 and ENT keys; to abort it, press the 2 and ENT keys.
DOWNLOAD FILE Too many files!! Retry? 1:Yes 2:No DOWNLOAD __BHT.SYS Communication error!! Retry? 1:Yes 2:No ■ Problem The current download will exceed the maximum of 80 files in the memory. ■ Solution Press the 2 key to return to the SYSTEM MENU, then delete unnecessary files in the memory. (Refer to Subsection 2.5.3, [ 9 ].) ■ Problem Downloading has failed. ■ Solution To retry downloading, press the 1 key. To return to the SYSTEM MENU, press the 2 key.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [10.2] Uploading the BHT system parameter file UPLOAD ** Waiting ** Selecting "2:UPLOAD" on the SYSTEM PARAMETER transfer menu calls up the screen shown at left. With this screen displayed, the BHT waits for the BHT system parameter file to be uploaded. ⇓ UPLOAD __BHT.
If an error occurs during uploading If some error occurs during uploading, one of the following screens will appear and the beeper beeps three times. To retry the uploading operation, press the 1 and ENT keys; to abort it, press the 2 and ENT keys. Press the C key to return to the SYSTEM PARAMETER transfer menu. UPLOAD Out of memory!! ■ Problem The memory is insufficient for setting up the BHT system parameter file to be uploaded.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [ 11 ] Setting the Remote Wakeup SET REMOTE WAKEUP 1:REMOTE WAKEUP ON Pressing the 4 key while holding down the SF key on the SYSTEM MENU calls up the screen shown at left. OFF 2:TRANSMIT SPEED 1 REMOTE WAKEUP: Activates or deactivates the remote wakeup function. 2 TRANSMIT SPEED: Sets the transmission speed for the remote wakeup. 9600 19200 38400 57600 115200 Select a desired item by using the numerical keys or and keys.
[ 12 ] Setting the CPU Performance SET THE CPU PERFORMANCE 1: Regular 2: High Pressing the 5 key while holding down the SF key on the SYSTEM MENU calls up the screen shown at left. 1 Regular: Operates the CPU at normal clock speeds. 2 High: Operates the CPU at higher clock speeds. Select a desired item by using the numerical keys or and keys. Then select a desired setting by using the and keys. To return to the SYSTEM MENU, press the C key.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode [ 13 ] Downloading/Uploading the System Message File SYSTEM MESSAGE transfer menu SYSTEM MESSAGE 1:DOWNLOAD 2:UPLOAD Pressing the 6 key while holding down the SF key on the SYSTEM MENU calls up the screen shown at left. 1 DOWNLOAD: Downloads the system message file to the user area of the BHT. 2 UPLOAD: Uploads the system message file stored in the BHT. Select a desired item by using the numerical keys and keys, then press the ENT key.
DOWNLOAD Upon completion of downloading, the BHT displays the screen shown at left and beeps once. _SYSMSG.FN3 ** Completed ** Press the C key to return to the SYSTEM MESSAGE transfer menu. When the BHT downloads the system message file, it creates a temporary file named "_SYSMSG.FN3" in the user area. If the user area is insufficient for creating the temporary file, therefore, an error will result. The created temporary file will be automatically deleted after completion of downloading.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode DOWNLOAD FILE Too many files!! Retry? 1:Yes 2:No DOWNLOAD _SYSMSG.FN3 Communication error!! Retry? 1:Yes 2:No ■ Problem The current download will exceed the maximum of 80 files in the memory. ■ Solution Press the 2 key to return to the SYSTEM MENU, then delete unnecessary files in the memory. (Refer to Subsection 2.5.3, [ 9 ].) ■ Problem Downloading has failed. ■ Solution To retry downloading, press the 1 key.
[13.2] Uploading the system message file UPLOAD ** Waiting ** Selecting "2:UPLOAD" on the SYSTEM MESSAGE transfer menu calls up the screen shown at left. With this screen displayed, the BHT waits for the system message file to be uploaded. ⇓ UPLOAD _SYSMSG.FN3 ** Loading ** While the uploading operation is in progress, the screen shown at left is displayed indicating the file name and the number of sent records/the total number of records.
Chapter 2. Getting Started the BHT-7500/7500S and System Mode If an error occurs during uploading If some error occurs during uploading, one of the following screens will appear and the beeper beeps three times. To retry the uploading operation, press the 1 and ENT keys; to abort it, press the 2 and ENT keys. Press the C key to return to the SYSTEM MESSAGE transfer menu. UPLOAD Out of memory!! ■ Problem The memory is insufficient for setting up the system message file.
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Chapter 3. Communications Operations of the BHT-7500/7500S Chapter 3 Communications Operations of the BHT-7500/7500S This chapter describes the communications operations of the BHT-7500/7500S—the spread-spectrum communication (for BHT-7500S only), IR communication, RS-232C interface specifications, the basic communications specifications, and the communications protocols—for data transfer with the host computer or other devices. 3.1 Spread-Spectrum Communication (BHT-7500S only) .........................
3.1 Spread-Spectrum Communication (BHT-7500S only) 3.1.1 Notes for Wireless Operations • If there are too many communications errors, first make sure that the BHT points directly at an access point because the 2.4-GHz band requires a more or less straight line path. Note also that the low-power radio waves have trouble passing through human bodies and other obstacles along that path.
Chapter 3. Communications Operations of the BHT-7500/7500S 3.2 Infrared Communication The BHT has an integrated infrared (IR) communications device which enables wireless transfer of programs and data between the BHT and the host computer and between the BHTs, instead of the conventional wire transfer.
The BHT's IR communications device is IrDA-compliant. IrDA stands for Infrared Data Association, which has defined hardware (IrDA Serial Infrared Physical Layer Link) and communications protocols for IR communications. The BHT's physical layer complies with the IrDA1.0, with a maximum transfer distance of 0.8 m and maximum transmission rate of 115.2 kbits per second.
Chapter 3. Communications Operations of the BHT-7500/7500S 3.3 RS-232C Interface Specifications [ 1 ] Interface Connector and Pin Assignment The BHT has a direct-connect interface port which is connectable to the 3-pole mini stereo plug (ø2.5 mm or 0.1") and supports a subset of the RS-232C interface as shown below. Using a direct-connect interface cable having the mini stereo plugs makes it possible to connect the BHT to a host computer (or another BHT) directly without any routing through the CU-7000.
[ 2 ] Interface Cable Connection Connect the BHT directly to a host computer, a modem, or a printer with a directconnect interface cable as illustrated below.
Chapter 3. Communications Operations of the BHT-7500/7500S 3.4 Basic Communications Specifications and Parameters 3.4.1 Basic Communications Specifications Listed below are the communications specifications when the BHT exchanges data with a host computer through the CU-7000 (optical interface) or direct-connect interface cable.
■ Transmission Code and Bit Order All characters should be coded to 7- or 8-bit code for data transmission. The standard data exchange code of the BHT is JIS 7- or 8-bit code. The transmission bit order is LSB (Least significant bit) first. What follows is an example for transmitting character A (41h, 01000001b) coded to JIS 8-level code with an even parity and a single bit each for start and stop bits.
Chapter 3. Communications Operations of the BHT-7500/7500S 3.4.2 Communications Parameters In System Mode and user programs written in BHT-BASIC, you may set the communications parameters listed below.
3.5 Communications Protocols The BHT supports both the BHT-protocol and the BHT-Ir protocol for file transmission. 3.5.1 BHT-protocol [ 1 ] Overview The BHT-protocol is the communications procedure used to transmit files between the BHT and a host (or between the BHTs). It adopts the response method using ACK/NAK codes.
Chapter 3. Communications Operations of the BHT-7500/7500S [ 2 ] Control Characters The control characters are classified into two groups: transmission control characters and text control characters. (1) Transmission control characters The transmission control characters listed below are used to compose transmission control sequences in phases 1 through 3. Symbol Value Meaning Function EOT 04h End Of Transmission Releases a data link (Phase 3). Requests abort of transmission (Phase 2).
(2) Text control characters The text control characters are used to format transmission texts. In the BHT-protocol, they include the following headers and a terminator. Symbol Value Meaning Function SOH 01h Start Of Heading Indicates the start of heading text (Phase 2). STX 02h Start of Text Indicates the start of data text (Phase 2). ETX 03h End of Text Indicates the end of data text (Phase 2). You may designate values of headers and a terminator with the protocol functions in BHT-BASIC.
Chapter 3. Communications Operations of the BHT-7500/7500S [ 3 ] Basic Format of Transmission Messages Basically, the BHT transmits data as units of a file. First, it transmits a heading text which includes the attribute information of a file (e.g., file name and the number of data texts) to be transmitted. Following the heading text, it transmits the data text in the file. A heading text and data text comprise a text.
[ 4 ] Text Format Text should be formatted according to the standard of the BHT-protocol before transmission. Shown below are two types of the standard text formats for program files and data files. ■ Program Text Format (1) Heading text Byte position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Number of data texts contained (5 bytes) Program file name (12 bytes) Example of contents P R O G 1 .
Chapter 3. Communications Operations of the BHT-7500/7500S ■ Data Text Format (1) Heading text Byte position Number of fields (2 bytes) Length of data field 1 Length of data field n (2 bytes) (2 bytes) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Number of data texts contained (5 bytes) Data file name (12 bytes) Example of contents M A S T E R . D A T n 0 0 5 9 2 The data file name should be a maximum of 12 characters in length and it consists of FILE NAME and .EXTENSION.
3.5.2 BHT-Ir Protocol [ 1 ] Overview The BHT-Ir protocol is the communications procedure for the serial infrared link, which is used to transmit files between the BHT and a host (or between the BHTs). It adopts the response method using ACK/NAK codes. The BHT-Ir protocol can be used also for communications through the direct-connect interface.
Chapter 3. Communications Operations of the BHT-7500/7500S [ 2 ] Control Characters The control characters are classified into two groups: transmission control characters and text control characters. (1) Transmission control characters The transmission control characters listed below are used to compose transmission control sequences in phases 1 through 3. Symbol Value Meaning Function DLE EOT 1004h End Of Transmission Releases a data link (Phase 3). Requests abort of transmission (Phase 2).
(2) Text control characters The text control characters are used to format transmission texts. In the BHT-Ir protocol, they include the following headers and a terminator. Symbol Value Meaning Function DLE SOH 1001h Start Of Heading Indicates the start of heading text (Phase 2). DLE STX 1002h Start of Text Indicates the start of data text (Phase 2). DLE ETX 1003h End of Text Indicates the end of data text (Phase 2).
Chapter 3. Communications Operations of the BHT-7500/7500S [ 3 ] Basic Format of Transmission Messages Basically, the BHT transmits data as units of a file. First, it transmits a heading text which includes the attribute information of a file (e.g., file name and the number of data texts) to be transmitted. Following the heading text, it transmits the data text in the file. A heading text and data text comprise a text.
[ 4 ] Text Format Text should be formatted according to the standard of the BHT-Ir protocol before transmission. Shown below are two types of the standard text formats for program files and data files. ■ Program Text Format (1) Heading text Byte position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Number of data texts contained (5 bytes) Program file name (12 bytes) Example of contents P R O G 1 .
Chapter 3. Communications Operations of the BHT-7500/7500S ■ Data Text Format (1) Heading text Number of fields (2 bytes) Length of data field 1 (3 bytes) Byte position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Number of data texts contained (5 bytes) Data file name (12 bytes) Example of contents M A S T E R . Length of data field n (3 bytes) D A T 0 0 5 9 2 n The number of data texts should be 0 to 32767.
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Chapter 4. Error Messages This chapter lists the error messages which will appear on the LCD if some error occurs in the BHT-7500/7500S. 4.1 System Errors ........................................................................................................ 136 4.2 Errors in System Mode .........................................................................................
4.1 System Errors If some error occurs when the power is turned on or during program execution, one of the following error messages will appear on the LCD. System Program error ■ Problem A System Program error has occurred. ******************** No System! ** ** ******************** If this error occurs, the BHT beeps five times (for 0.1 second per beep) and then turns itself off. ■ Solution Contact your nearest dealer. Low battery indication—Level 1 ■ Problem Battery voltage has lowered.
Chapter 4. Error Messages Low battery indication—Level 2 (When the rechargeable battery cartridge is loaded) ■ Problem When the power is turned on or off or during execution of program (System Mode or application), the battery output level has lowered. Charge the battery! If lower battery is detected, the BHT beeps five times (for 0.1 second per beep) and then turns itself off. Depending upon the battery level, the beeper may not sound five times.
Abnormally turned off last ■ Problem Your terminal was not shut down properly the last time it was used. After turned off abnormally*, the BHT had been left with no battery cartridge loaded or with a discharged battery cartridge loaded, so unsaved data was lost. (*"Normally turned off" refers to turned-off with the PW key or by the auto power-off feature.) Unsaved data was lost. ■ Solution [SF+2] Refer to Subsection 2.3.7 "BHT Turning-off Notes.
Chapter 4. Error Messages Execution program not selected ■ Problem No execution program selected. Contact your administrator. No user program has been selected as an execution program to be run when the power is turned on. If this error occurs, the BHT beeps five times (for 0.1 second per beep) and then turns itself off. ■ Solution Run System Mode and select an execution program in the SET SYSTEM menu. (For the selecting procedure, refer to Chapter 2, Subsection 2.5.3, [4.1].
System down error ■ Problem System down error! type:XXXXXXXX ercd:XXXXXXXX inf1:XXXXXXXX inf2:XXXXXXXX SR PC PR R0 :XXXXXXXX R1 :XXXXXXXX R2 :XXXXXXXX R3 :XXXXXXXX R4 :XXXXXXXX :XXXXXXXX R5 :XXXXXXXX :XXXXXXXX R6 :XXXXXXXX :XXXXXXXX R7 :XXXXXXXX R8 :XXXXXXXX R9 :XXXXXXXX R10:XXXXXXXX R11:XXXXXXXX R12:XXXXXXXX R13:XXXXXXXX R14:XXXXXXXX R15:XXXXXXXX An error has occurred during execution of System Program. If this error occurs, the BHT beeps five times (for 0.1 second per beep).
Chapter 4. Error Messages 4.2 Errors in System Mode If some error occurs during operation in System Mode, one of the following error messages will appear on the LCD. When selecting a program file or data file EXECUTE PROGRAM ****************** * NO FILE EXISTS * ****************** ■ Problem You attempted to execute a user program in the EXECUTE PROGRAM menu, but no user program files had been stored in the memory.
DELETE FILE ****************** * NO FILE EXISTS * ****************** ■ Problem You have deleted all of the files stored in the memory in the DELETE FILE menu. ■ Solution Press the C key to return to the SYSTEM MENU screen. During downloading of a program file, data file, BHT system parameter file, or system message file DOWNLOAD FILE Out of memory!! Retry? 1:Yes 2:No ■ Problem The memory is insufficient for storing files to be downloaded.
Chapter 4. Error Messages DOWNLOAD FILE Too many files!! Retry? 1:Yes 2:No ■ Problem The current download will exceed the maximum of 80 files in the memory. ■ Solution Press the 2 key to return to the SYSTEM MENU, then delete unnecessary files in the memory (or decrease the number of files to be downloaded if you attempted to download more than one file in the DOWNLOAD menu.) (Refer to Chapter 2, Subsection 2.5.3, [ 9 ], [ 2 ], [ 10 ], and [ 13 ].) DOWNLOAD FILE XXXXXXXX.
During uploading of a program file, data file, BHT system parameter file, or system message file UPLOAD FILE XXXXXXXX.XXX ■ Problem The file you attempted to upload is damaged. File error!! ■ Solution Upload? 1:Yes 2:No UPLOAD Out of memory!! To upload the damaged file as is, press the 1 key. ■ Problem The memory is insufficient for setting up the BHT system parameter file or system message file to be uploaded. ■ Solution Press the C key to return to the SYSTEM MENU and delete unnecessary files.
Chapter 4. Error Messages UPLOAD FILE ■ Problem XXXXXXXX.XXX Uploading has failed. Communication error!! ■ Solution Retry? 1:Yes 2:No To retry uploading, press the 1 key. To return to the SYSTEM MENU, press the 2 key. Check the interface port, communications parameters, and communications protocol type in the SET SYSTEM menu or perform the communications test in the TEST menu. (Refer to Chapter 2, Subsection 2.5.3, [4.5] and [5.5].
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Chapter 5. Handling the CU-7000 (Option) This chapter describes the handling procedure of the CU-7000, the interfacing with the host computer, and the charging of the rechargeable battery cartridge. 5.1 Functions of the CU-7000 ...................................................................................... 148 5.2 Components and Functions .................................................................................. 148 5.3 Applying Power to the CU-7000 ....................................
5.1 Functions of the CU-7000 The optical communications unit CU-7000 is available in two models: CU-7001 and CU7002. The CU-7001 has both of functions (1) and (2) given below, the CU-7002 has only function (1). (1) Data exchange function The CU-7001/CU-7002 exchanges data and programs between the BHT and the host computer. It interfaces with the BHT via the optical interface and with the host computer via the RS-232C interface.
Chapter 5. Handling the CU-7000 (Option) 5.3 Applying Power to the CU-7000 Apply power to the CU-7000 by connecting it to the wall socket via the dedicated AC adapter according to the steps given below. Connect the outlet plug of the AC adapter to the power inlet connector of the CU-7000, then plug the other end of the AC adapter into the wall socket.
5.4 Communicating with the Host Computer 5.4.1 Setting the Transmission Speed of the CU-7000 Set the transmission speed of the CU-7000 to the same value as that of the BHT and the host computer, by using the DIP switch provided on the bottom of the CU-7000. (1) Turn the CU-7000 upside down. (2) Remove the protection sheet of the DIP switch from the CU-7000. (3) Set the selectors of the DIP switch as shown below.
Chapter 5. Handling the CU-7000 (Option) 5.4.3 Interfacing with the Host Computer This section describes how to start communication with the host computer in System Mode. The same may apply when you use a user program. (1) Turn the host computer on. (2) Plug the AC adapter of the CU-7000 into the wall socket. (3) Make sure that the BHT is turned off, then set it on the CU-7000. (4) Turn the BHT power on and run System Mode.
5.5 Charging the Rechargeable Battery Cartridge (using the CU-7001) You may charge a rechargeable battery cartridge loaded in the BHT. Service Life of Rechargeable Battery Cartridge: Lithium-ion batteries used in the rechargeable battery cartridge will gradually deteriorate during the repeated cycles of charging and discharging due to its properties, even under normal use.
Chapter 5. Handling the CU-7000 (Option) ■ Charging Operation and LED Indication Operator's Action CU-7001 Status On standby Indicator LED on the BHT OFF ⇓ Place the BHT on the CU-7001. Normal charging ⇓ ⇓ After approx. 4 hours Charging completed ⇓ ⇓ Remove the BHT.
5.6 RS-232C Interface Specifications [ 1 ] Interface Connector and Pin Assignment The CU-7000 has an RS-232C interface port (Dsub-25S). 13 1 25 14 RS-232C interface port (Dsub-25S) on the CU-7000 Pin No.
Chapter 5. Handling the CU-7000 (Option) [ 2 ] Interface Cable Connection As illustrated below, connect the CU-7000 (on which the BHT is put) to a host computer with a cross-mode cable. To connect it to a modem, use a straight-mode cable.
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Appendices Appendix A. Specifications .............................................................................................. 158 A.1 BHT-7500/7500S .............................................................................................. 158 [1] Product Specifications ............................................................................ 158 [2] Bar Code Specifications .......................................................................... 160 [3] Interface Specifications ......
Appendix A. Specifications A.1 BHT-7500/7500S [ 1 ] Product Specifications Power Source Main power • Rechargeable lithium-ion battery cartridge (3.6 VDC) or • Dry battery cartridge (two alkaline manganese batteries LR6s) Dimensions (W) x (L) x (H) 75 x 203 x 50 mm (3.0 x 8.0 x 2.0 inches) Weight Approx. 290 g (Approx. 10.2 oz.
Appendices Display Type: Dot-matrix, FSTN liquid crystal display (LCD) with backlight Formation: Character display 160 dots wide by 159 dots high Status display 160 dots wide by 1 dot high Screen mode Font size Chars x Lines Dots (W x H) 26 x 20 26 x 26 6x8 6x6 Single-byte ANK* mode Standard-size Small-size Two-byte Kanji mode 16-dot font Full-width Half-width 10 x 10 20 x 10 16 x 16 8 x 16 16-dot font (Double-width) Full-width Half-width 5 x 10 10 x 10 32 x 16 16 x 16 12-dot font Ful
[ 2 ] Bar Code Specifications (1) Available Bar Code Types Bar code type Bar dimensions Readable magnification Universal product codes EAN-13 EAN-8 UPC-A UPC-E EAN-13 with supplemental codes 0.26 to 0.66 mm (10.24 to 25.98 mils) 0.8 to 2.0 EAN-8 with supplemental codes UPC-A with supplemental codes UPC-E with supplemental codes 2-digit add-on 5-digit add-on 0.125 mm min. (4.92 mils min.) PCS value ≥ 0.9 Reflection intensity difference between white and black bars ≥ 0.
Appendices (3) Bar Code Label Size Recommended width: 10 mm min. (0.39 inch min.) Length: Depth of field (Distance from bar codes to the bar-code reading window) Length of labels (including margins) 80 mm (3.15 inches) 80 mm max. (3.15 inches max.) (Minimum narrow bar width: 0.127 mm min.)*1 560 mm (22.05 inches) 520 mm max. (20.47 inches max.) (Minimum narrow bar width: 1.4 mm min.)*6 Length Width (4) Thickness of Bars and Depth of Field Minimum narrow bar width 0.127 mm 0.19 mm 0.33 mm 0.
[ 3 ] Interface Specifications Optical Interface Synchronization: Start-stop Input signals: RD Output signals: SD Transmission speed: 115,200 bps max. Direct-connect Interface Synchronization: Start-stop Transmission speed: 115,200 bps max. Signal level: Conforms to the RS-232C interface Pin assignment: As shown below. SD Pin No.
Appendices A.2 CU-7000 [ 1 ] Product Specifications Power Source - Europe - U.S. -Australia 230 VAC, 16 VA 120 VAC, 13 VA 10 to 18 VDC, 450 mA (on 12 VDC) Power Consumption 2W Dimensions (W) x (L) x (H) 112 x 148 x 84 mm (4.41 x 5.83 x 3.31 inches) Weight CU-7001: Approx. 230 g (Approx. 8.11 oz.) CU-7002: Approx. 200 g (Approx. 7.06 oz.
[ 3 ] Interface Specifications 13 1 25 14 RS-232C Interface Port (Dsub-25S) on the CU-7000 Pin No. Signal 1 2 3 4 5 6 7 8 20 FG SD RD RS CS DR SG CD ER Signal Input/Output External CU-7000 device Functions Frame ground Send data Receive data Request to send Ready to send Data set ready Signal ground Carrier detect Data terminal equipment ready — → ← — — — — — — Shown below is a diagram of the internal connection in the CU-7000.
Appendices Appendix B. Communications Protocol Details B.1 BHT-protocol [ 1 ] Transmission Control Sequences Shown below is a typical message transmission sequence supported by the BHTprotocol. This sequence example does not include transmission errors or negative responses.
Data transmission may accidentally involve various types of errors. The BHT-protocol is designed to recover from those errors as frequently as possible. What follows is the BHT-protocol for phases 1 through 3. Phase 1: Establishment of Data Link ■ Normal phase 1 The sending station transmits an ENQ to the receiving station. Upon receipt of an ACK from the receiving station, the sending station shifts to phase 2. ENQ Sending station Receiving station ACK To phase 2.
Appendices ■ Abnormal termination of phase 1 (Abort of phase 1) If the sending station receives no ACK from the receiving station after sending an ENQ 10 times in succession, it sends an EOT to the receiving station after three seconds from the 10th ENQ to terminate the message transmission abnormally. Sending station Receiving station ENQ(1) 3 seconds ENQ(2) 3 seconds ENQ(3) ENQ(10) 3 seconds EOT Abnormal termination The receiving station's default timeout is 30 seconds.
Phase 2: Data Transmission ■ Normal phase 2 The sending station first sends a transmission block containing the heading text. Each time the sending station receives an ACK from the receiving station, it sends a transmission block containing the data texts as shown below. Upon receipt of an ACK in response to the last transmission block (data text n), the sending station shifts to phase 3. If a transmission message contains no data text, the sending station transmits the heading text only.
Appendices ■ Phase 2 with NAK If the sending station receives a NAK from the receiving station in response to a transmission block containing text data m, it sends that transmission block again immediately as shown below. If the sending station receives an ACK before receiving a NAK 10 times in succession, it continues the subsequent message transmission.
■ Phase 2 with EOT If the sending station receives an EOT anytime during phase 2, it shifts to phase 3 to terminate the message transmission abnormally. Even if phase 3 terminates normally, the transmission results in an abnormal end. Receiving station Sending station EOT Occurrence of an error To phase 3.
Appendices ■ Abnormal termination of phase 2 (Abort of phase 2) If the sending station receives no ACK from the receiving station after sending an ENQ nine times in succession, it sends an EOT to the receiving station after 3 seconds from the 9th ENQ to terminate this transmission sequence abnormally.
■ Phase 3 with iterated EOT transmission due to no response or invalid response If the sending station receives no response or any invalid response from the receiving station in response to an EOT sent, it iterates sending of an EOT at threesecond intervals up to ten times. If the sending station receives an ACK before sending an EOT ten times, it terminates the message transmission normally and releases the data link.
Appendices [ 2 ] Aborting Data Transmission Pressing the C key aborts data transmission. If the C key is pressed during downloading, the BHT transmits an EOT and aborts the file transmission. If it is pressed during uploading, the BHT transmits the current transmission block followed by EOT and then aborts the file transmission.
[ 3 ] BCC for Horizontal Parity Checking To check whether data has been transmitted accurately, the BHT supports horizontal parity checking for every transmission block. In horizontal parity checking, a horizontal parity byte so called BCC (Block Check Character) is suffixed to an ETX of every transmission block.
Appendices B.2 BHT-Ir protocol [ 1 ] Transmission Control Sequences Shown below is a typical message transmission sequence supported by the BHT-Ir protocol. This sequence example does not include transmission errors or negative responses.
Data transmission may accidentally involve various types of errors. The BHT-Ir protocol is designed to recover from those errors as frequently as possible. What follows is the BHT-Ir protocol for phases 1 through 3. Phase 1: Establishment of Data Link ■ Normal phase 1 The sending station transmits a sequence of DLE ENQ and IDm (sending station's ID) to the receiving station.
Appendices ■ Abnormal termination of phase 1 (Abort of phase 1) If the sending station receives no sequence of DLE ACK and IDs from the receiving station after sending a sequence of DLE ENQ and IDm 60 times in succession, it sends a sequence of DLE EOT and IDm to the receiving station after 0.5 second from the 60th sequence of DLE ENQ and IDm, then aborts the message transmission abnormally. Sending station Receiving station DLE ENQ and IDm (1) 0.5 second DLE ENQ and IDm (2) 0.
Phase 2: Data Transmission ■ Normal phase 2 The sending station first sends a transmission block containing the heading text. Each time the sending station receives a sequence of DLE ACK and IDs from the receiving station, it sends a transmission block containing the data texts as shown below. Upon receipt of a sequence of DLE ACK and IDs in response to the last transmission block (data text n), the sending station shifts to phase 3.
Appendices ■ Phase 2 with suspension of data reception for erasure of the flash memory If the receiving BHT requires the flash memory to be erased for receiving downloaded files, it sends a sequence of WACK and IDs to the sending station to suspend the data transmission. Upon receipt of the sequence of WACK and IDs, the sending station stops the data transmission until any response comes from the receiving station for one minute.
■ Phase 2 with a sequence of DLE NAK and IDs If the sending station receives a sequence of DLE NAK and IDs from the receiving station in response to a transmission block containing text data m, it sends that transmission block again immediately as shown below. If the sending station receives a sequence of DLE ACK and IDs before receiving the sequence of DLE NAK and IDs 10 times in succession, it continues the subsequent message transmission.
Appendices ■ Phase 2 with a sequence of DLE EOT and IDs If the sending station receives a sequence of DLE EOT and IDs anytime during phase 2, it shifts to phase 3 to terminate the message transmission abnormally. Even if phase 3 terminates normally, the transmission results in an abnormal end. Sending station Receiving station DLE EOT and IDs Occurrence of an error To phase 3.
■ Abnormal termination of phase 2 (Abort of phase 2) If the sending station receives no sequence of DLE ACK and IDs from the receiving station after sending a sequence of DLE ENQ and IDs 59 times in succession, it sends a sequence of DLE EOT and IDs to the receiving station after 0.5 second from the 59th sequence of DLE ENQ and IDs and then aborts this transmission abnormally. Sending station 0.5 second 0.5 second Receiving station DLE ENQ and IDs (1) DLE ENQ and IDs (2) DLE ENQ and IDs (59) 0.
Appendices ■ Phase 3 with iterated transmission of DLE EOT and IDs due to no re- sponse or invalid response If the sending station receives no response or any invalid response from the receiving station in response to the sent sequence of DLE EOT and IDs, it iterates sending of the sequence at 0.5-second intervals up to 60 times.
■ Phase 3 with timeout at the receiving station If the receiving station receives no subsequent text or normal sequence of DLE EOT and IDs within 30 seconds after sending a sequence of DLE ACK and IDs, it sends a sequence of DLE EOT and IDs and aborts the transmission abnormally. Sending station Data text #n Receiving station DLE ACK and IDs 30 seconds DLE EOT and IDs Abnormal termination [ 2 ] Aborting Data Transmission Pressing the C key aborts data transmission.
Appendices [ 3 ] CRC To check whether data has been transmitted accurately, the BHT-Ir protocol supports CRC (Cyclic Redundancy Check) which employs the CRC-16 generating system. In CRC, a CRC character is suffixed to a sequence of DLE ETX of every transmission block. Operands for CRC-16 The CRC generates CRC-16 from all bytes of a transmission block excluding DLE SOH or DLE STX characters (which are at the head of a transmission block), DLE character of DLE ETX and DLE character of DLE DLE in the text.
Appendix C. A Typical Basic Operation What follows is a typical basic operation which helps you instruct the hands-on user in practical bar-code reading operation. Application type: Inventory Operation: Power ON → Read the bar code on stock (A). → Key in the quantity. Read the bar code on stock (B). → Key in the quantity. . .. Repeat the above operation. .. . 6. Ready for data entry Record 00100 scrolls up so that record 00101 becomes ready for next data entry. File1 A: 00/05/20 MULTI K 00101 4.
Bar Code Handy Terminal BHT-7500/7500S User's Manual First Edition, January 2001 DENSO CORPORATION Industrial Systems Product Division The purpose of this manual is to provide accurate information in the handling and operating of the BHT-7500/7500S. Please feel free to send your comments regarding any errors or omissions you may have found, or any suggestions you may have for generally improving the manual.
