AD-8922A Remote Controller INSTRUCTION MANUAL 1WMPD4002022
© 2009 A&D Company Ltd. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, or translated into any language in any form by any means without the written permission of A&D Company Ltd. The contents of this manual and the specifications of the instrument covered by this manual are subject to change for improvement without notice.
CONTENTS １ INTRODUCTION .................................................................................................................................... 2 １-１ Outline .......................................................................................................................................................2 １-２ Applicable Instruments ..............................................................................................................................2 １-３ Compliance...................
１ INTRODUCTION The AD-8922A is a remote controller. Read this manual completely before using the AD-8922A in order to ensure a sufficient understanding for proper use. １-１ Outline The AD-8922A is connected to an A&D manufactured weighing instrument, using the RS-232C serial interface. Displays the weighing data transmitted by the weighing instrument. Key operations remotely control the weighing instrument. (Entering the function setting mode of the weighing instrument is not available.
The AD-8922A functions in two ways as follows, depending on the weighing instrument used: A remote controller that displays the weighing data and remotely controls the weighing instrument. A remote display that displays the weighing data. Available key operations depend on the weighing instrument used, as shown below. Set the command set "C5et" of the function setting, appropriate to the weighing instrument.
２ DESCRIPTION OF EACH PART Main unit Display Keys Angle adjustment knob Connector to the external device (DIN 8-pin ) Rear AC adapter jack Connector to the weighing instrument (D-Sub 9-pin ) Grounding terminal Stand Accessories AC adapter AC adapter identification label See Note below. Communications cable to connect to a weighing instrument (Length: 2 m, 1 pc.
２-１ Display Displays the weighing data and the unit (or mode) received. The unit (or mode) may be different from that of the weighing instrument. Turns on the stabilization indicator when the header of the weighing data received is "ST", "QT", or "WT". Turns on the comparator indicator when the comparison results are added to the data received. Applicable to GX-K, GF-K, GP and AD-4212A/B. (Function setting "Cp-r") When nothing has been received for two seconds or more, the bar display [- - - - -] appears.
３ GETTING READY ３-１ Setting the Weighing Instrument and the AD-8922A 1. Set each item as shown below. Set the same value for the weighing instrument and the AD-8922A. Table 3 Item Baud rate Data bits, Parity bit Stop bits Terminator Data format Communication control Data output mode Weighing instrument AD-8922A 600, 1200, 2400, 4800, 9600.
３-３ Turning the Power on Insert the AC adapter plug into the AC adapter jack located on the rear of the AD-8922A. Plug the AC adapter into an appropriate electrical outlet. When connected to the AD-4212C, power can be supplied to both instruments by plugging the AC adapter into either the AD-4212C or the AD-8922A. (Both instruments can have their AC adapter connected at the same time.) ３-４ Operation The AD-8922A displays the weighing data transmitted by the weighing instrument used.
Table 4 Use of the AD-8922A Example of use Weighing instrument AD-8922A setting Through mode "out 0" Monitors the weighing data of the weighing instrument remotely. Stream mode (Outputs the Key mode 1 weighing data continuously.) "out 1" Key mode 2 "out 2" Sends all of the received weighing data to the external device. When the AD-8922A PRINT key is pressed, sends the latest weighing data received to the external device, regardless of the data status.
４ FUNCTION SETTINGS The function settings specify the parameters for the AD-8922A performance. These parameters stored, even if the AC adapter is removed, are maintained in non-volatile memory. The function menu consists of two layers. The first layer is the “Class” and the second layer is the “Item”. Each item is selected by the SAMPLE key. The parameter of the selected item is changed by the RE-ZERO key. Finally, the parameter is stored and is enabled by the PRINT key.
４-２ Function Table Table 6 Class Item Parameter 0 Set 0 1 Set 1 2 Set 2 3 Set 3 4 Set 4 0 Through mode 1 Key mode 1 2 Key mode 2 0 Bar display 1 Hold display 0 Not used 1 At intervals 2 Used dpp 0 Not set 5apl 6 0 C5et * Command set out Output mode fnc Environment Display Hold Timeout bep Data receipt buzzer Position of decimal point Function of the SAMPLE key Set No function Description When connected to EK-G, EW-G, FC-i, FC-Si, FG, FP, FS, FS-KL HV-G, HV-WP,
Class Item btpr 5if Serial interface Data bits Parity bit 5top Stop bits Crlf Terminator data data polp bcd BCD Available only when the BCD output is installed. Polarity 5tbp Stability 0erp Over 5trp Strobe 5trt Strobe pulse width 5trp (Input terminal function) Cp fnc Cp Comparator Comparator mode Available only when the comparator bep output is LO buzzer installed. bep- OK buzzer bep HI buzzer aout Analog output Available only when the analog output is installed.
４-３ Initialization Initialization restores the AD-8922A function settings to factory settings. 1. Connect the AC adapter. The bar display or the weighing data display appears. 2. While pressing and holding the ON:OFF key, press the PRINT key. "Clr" appears in the display. 3. Press the PRINT key. (To cancel the operation, press the CAL key.) 4. Press the RE-ZERO key to select "go". 5. Press the PRINT key to perform initialization. After initialization, the bar display or the weighing data display appears.
５ TROUBLESHOOTING Shown below is a list of various phenomena of the AD-8922A and the remedies. Table 7 Phenomenon error10 appears. Cause and remedy • The communications settings of the AD-8922A and the weighing instrument are not the same. Check the settings. • The weighing instrument data format is incorrect. error11 appears. The bar display remains and no weighing data appears. Set the data format to A&D standard format. Also check whether or not data other than weighing data is output.
６ SPECIFICATIONS Power supply : AC adapter (Please confirm that the AC adapter type is correct for your local voltage and receptacle type.) Power consumption : Approx.11 VA (Including the AC adapter, AD-8922A: approx. 1.5 VA) Transmission system : RS-232C Baud rate : 600, 1200, 2400, 4800, 9600, 19200 bps Refresh rate : Approx. 10 times/second (When Baud rate is 2400 bps or greater).
７ RS-232C SERIAL INTERFACE RS-232C Transmission system Transmission form Data format : : : EIA RS-232C Asynchronous, bi-directional, half duplex Baud rate : 600, 1200, 2400, 4800, 9600, 19200 bps Data bits : 7 bits or 8 bits Parity bit : EVEN, ODD (Data bits 7 bits) NONE (Data bits 8 bits) Stop bits : 1 bit or 2 bits Code : ASCII Terminator : or RXD TXD (Va) Circuit CTS RTS DSR (Vs) SG TXD FG SG 6 7 8 1 3 5 4 2 RXD AD-8922A interior 5 4 3 2 1 9 8 7 6 AD-8922A interior Inch screw
８ EXTERNAL DIMENSIONS 185 132 100 238 57 72 91 108 170 96 192 130 Unit: mm 16
９ OPTIONS The AD-8922A has various options available as follows. For details on each option, refer to the relevant chapter. AD-8922A-01 BCD output Outputs the weighing data received from the weighing instrument using the RS-232C serial interface, in BCD format. AD-8922A-04 Comparator output Compares the weighing data received from the weighing instrument using the RS-232C serial interface with the upper or lower limit value and contact-outputs the results.
９-２ Installing the Option Install the option as shown below. The installation procedure is the same for all the options. 1. Disconnect the AC adapter. 2. Remove the two screws and pull out the RS-232C board provided as standard as shown in the illustration. 3. Insert the option board, along the guides on the left and right sides. 4. Using the two screws removed in step 2, fasten the option board.
１０ BCD OUTPUT (AD-8922A-01) Outputs the weighing data received from the weighing instrument in BCD format, along with the polarity (+/-) and the data status (stable/unstable and over/under). Using the STROBE signal, the data can be read easily. The AD-8922A-01 can set the input terminal function to either the BUSY or the RE-ZERO input function by selecting that function.
Plug (Provided) Part name Over mold cover Plug unit (Soldered type) Product number DX30M-50-CV DX40M-50P Manufacturer Hirose Electric Note: The products above are subject to be replaced with the equivalent. Cable Wire size Core configuration O.D. of insulator AWG #28 7/0.127 0.58 Pin assignments and I/O logic Output pin assignments Pin No.
5V FG 22kΩ BUSY/ 820Ω RE-ZERO Use a shielded cable. Housing (Cable shield) (1) When a switch is used 5 pin Input signal GND (2) When a photocoupler is used 5 (Input terminal) 5 pin CPU input terminal Input signal GND 3 Input signal GND (3) When a transistor is used Balance interior 5 pin Input signal GND (Upon switch-ON, make the voltage between the input terminal and the input signal GND terminal 0.
I/O timing chart After RE-ZERO Receive data ON OFF (RS-232C) BCD output 1 0 Tstr STROBE BUSY* RE-ZERO* Tstr ON OFF ON OFF ON OFF 100msec The factory setting of Tstr (Strobe pulse width) is approx. 10 ms. It can be changed to approx. 20 ms or approx. 50 ms in the function setting of "5trt". * -“BUSY/RE-ZERO input ON” is the condition that BUSY is connected to input signal GND (Pin 3). - The AD-8922A-01 can select either the BUSY input or the RE-ZERO input by setting the function.
RS-232C (BALANCE/SCALE) Transmission system Transmission form Data format : : : EIA RS-232C Asynchronous, bi-directional, half duplex Baud rate : 600, 1200, 2400, 4800, 9600, 19200bps Data bits : 7 or 8 bits Parity : Even, Odd (Data bits 7 bits) None (Data bits 8 bits) Stop bit : 1 or 2 bits Code : ASCII Terminator : or Circuit TXD SG 4 1 6 2 RXD DIN 8-pin AD-8922A interior 5 3 8 7 To a weighing instrument Pin assignment（BALANCE／SCALE） Pin No.
１０-２ Setting of the Decimal Point Position The AD-8922A can set the display digit and the BCD output digit by setting dpp of the function. When setting the decimal point position, the BCD output digit does not change if changing the minimum display digit by pressing the SAMPLE key.
１１ COMPARATOR OUTPUT (AD-8922A-04) The weighing data is compared with the upper and lower limit values and the results of the comparison are contact-output in three levels of HI OK LO . The upper and lower limit values are set in the function setting. Whether or not to sound the buzzer according to the results can be selected. Note: When the AD-8922A-04 is installed, the pin assignment (DIN 8-pin), of the RS-232C serial interface, to connect an external device, will be changed.
RS-232C Transmission system Transmission form Data format : : : EIA RS-232C Asynchronous, bi-directional, half duplex Baud rate : 600, 1200, 2400, 4800, 9600, 19200 bps Data bits : 7 bits or 8 bits Parity bit : EVEN, ODD (Data bits 7 bits) NONE (Data bits 8 bits) Stop bits : 1 bit or 2 bits Code : ASCII Terminator : or Circuit COM HI SG OK DSR SG RXD OK AD-8922A interior LO 5 4 9 3 8 2 7 LO 1 6 Inch screw thread (#4-40UNC) To a weighing instrument 4 1 6 2 8 TXD TXD RXD HI
１１-２ Using the Comparator Output To use the comparator output, perform the following four steps. 1. Connect the peripheral to the AD-8922A-04 DIN connector. 2. Set the “Comparator (Cp fnc)” of the AD-8922A function setting. For details, see “4. FUNCTION SETTINGS”. 3. Set the upper and lower limit values. For details, see “11-3 Setting the Upper and Lower Limit values”. 4. When the weighing data is received, the comparison results will be output.
１１-３ Setting the Upper and Lower Limit Values Up to 10 set of upper and lower limit values can be stored. Using the stored upper and lower limit values, comparison can be performed easily. To recall the stored values, press and hold the ON:OFF key and press the MODE key. １１-３-１ Storing the upper and lower limit values To store new upper and lower limit values, recall the stored data ("C01" to "C10") and change them. 1.
１１-３-２ Recalling the upper and lower limit values The procedure below describes an easy way to recall the upper and lower limit values to be used for weighing. 1 While pressing and holding the ON:OFF key, press the MODE key to enter the selection mode. 2 The upper limit value last selected with its comparator number appears. 3. Select the comparator number using the following keys. RE-ZERO key MODE key To increase the comparator number by 1. To decrease the comparator number by 1.
１２ CURRENT LOOP INPUT (AD-8922A-05) Can receive the current loop output from the weighing instrument. The data received can be output to an external device such as a personal computer and a printer, using the RS-232C serial interface. The weighing instrument can not be operated using the AD-8922A keys. Note: When AD-8922A-05 is installed, the pin assignment (DIN 8-pin) of the RS-232C serial interface, to connect an external device, will be changed. Note: The AD-4212C does not have current loop output.
Circuit ５Ｖ C.L C.L DSR TXD ３.３ｋΩ SG AD-8922A interior 4 5 4 9 3 8 2 7 1 1 6 Inch screw thread (#4-40UNC) To a weighing instrument 6 2 AD-8922A interior 5 3 8 7 To an external device such as a personal computer or a printer Connection to the weighing instrument Connection to an external device D-Sub 9-pin (Current loop) Pin Signal Description No. name 1 ⎯ N.C. 2 C.L Current loop 3 ⎯ N.C. 4 ⎯ N.C. 5 C.L Current loop 6 ⎯ N.C. 7 ⎯ N.C. 8 ⎯ N.C. 9 ⎯ N.C.
１３ ANALOG OUTPUT (AD-8922A-06) Converts the specified digits of the weighing data received from the weighing instrument to voltage and outputs. The output voltage can be selected from "0 to 1 V" and "0.2 to 1 V". Note: When the AD-8922A-06 is installed, the pin assignment (DIN 8-pin), of the RS-232C serial interface, to connect an external device, will be changed. １３-１ Analog Output Specifications Accessories DIN connector (Plug) 1 pc. Screwdriver 1 pc.
AD-8922A interior 4 5 4 9 3 8 2 7 SG 10 Ω RXD Analog GND Analog output TXD RXD DSR SG TXD Circuit 1 1 6 Inch screw thread (#4-40UNC) 6 2 5 AD-8922A interior 3 8 7 To an external device such as a personal computer or a printer To a weighing instrument Connection to the weighing instrument Connection to an external device D-Sub 9-pin (BALANCE/SCALE) Signal Pin Direction Description No. name 1 ⎯ ⎯ N.C. 2 RXD Input Receive data 3 TXD Output Transmit data 4 ⎯ ⎯ N.C.
１３-２ Function setting The function setting " aout” is available only when the AD-8922A-06 is installed. Parameter Description Class Item Converts the consecutive 2 digits, an 2-digt output with the digit selected in 5el as the 0 Analog output least, to voltage and outputs. mode Converts the consecutive 3 digits, 3-digt output with the digit selected in 5el as the 1 aout least, to voltage and outputs. Analog Selects the first digit as the least. 0 5el output Selects the second digit as the least.
１３-３ Switching Output Voltage The output voltage can be switched using the slide switch on the option panel. “0V～” has been set at factory before shipment. “0V～” (0-1 V): At zero=0.000 V At full scale=1.000 V “0.2～” (0.2-1 V): At zero =0.200 V At full scale=1.000 V １３-４ Output Voltage Fine Adjustment The output voltage has been adjusted at the factory before shipment. Using the ZERO and SPAN fine-adjustment knobs and a voltmeter, output voltage can be fine adjusted. １３-４-１ Fine-adjustment procedure 1.
１３-５ Fixed Output Voltage The output voltage is fixed under the following conditions: 1. While the weighing data is not displayed (e.g., the bar display, function setting operation) :0 V (or 0.2 V) 2. When “-e” (Weighing pan error) is being displayed: :0 V (or 0.2 V) 3.
１４ ACCESSORIES (CABLE LIST) 1.
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