Allen-Bradley 2-D Hand-Held Bar Code Scanners (Cat. No.
Important User Information The illustrations, charts, sample programs and layout examples shown in this guide are intended solely for purposes of example. Since there are many variables and requirements associated with any particular installation, Allen-Bradley does not assume responsibility or liability (to include intellectual property liability) for actual use based upon the examples shown in this publication. Allen-Bradley publication SGI-1.
Table of Contents Preface Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contents of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Laser Warning Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chapter 1 P–1 P–2 P–4 P–4 Scanner Features Scanner Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
toc–ii Chapter 2 Table of Contents Connecting the Scanner Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scanner Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scanner Cable to Synapse Cable Connection . . . . . . . . . . . . . . . Scanner Emulation Synapse Cable Connections . . . . . . . . . . . . . RS-232 Synapse Cable Connections . . . . .
Table of Contents Chapter 4 toc–iii Configuring the Scanner Important Notes on Configuring Scanner . . . . . . . . . . . . . . . . . . . 4–1 Configuration Bar Codes for Scanner . . . . . . . . . . . . . . . . . . . . . 4–1 Configuring the Scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2 Scanner Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2 Set Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
toc–iv Table of Contents Decode Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Beep After Good Decode . . . . . . . . . . . . . . . . . . . . . . . . . . . . Beeper Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Decode Buffering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pause Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Decode Attempt Duration . . . . . . . . . . . . . . . . . . . . .
Table of Contents Setting IBM PC Keyboard Wedge Synapse Cable Options . . . . . . Defaults Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Host Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Country Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unknown Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intercharacter Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
toc–vi Chapter 6 Table of Contents Troubleshooting and Maintenance Troubleshooting the Scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning the Scan Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-B Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface Read this preface to familiarize yourself with the rest of the manual. This preface covers the following topics: • intended audience • contents of this manual • related publications • laser warning symbol Intended Audience No special knowledge is required to understand this document or use the scanner. The 2-D (2-Dimensional) scanner may be used with a variety of host devices. You should be familiar with the host’s communication ports.
P–2 Preface Contents of this Manual Chapter Title Contents Describes the purpose, background, and scope of this manual. Also provides a list of related publications. Preface Provides an overview of the scanner. Includes read range charts and a description of accessory items. 1 Scanner Features 2 Connecting the Scanner Describes how to connect your scanner to system hardware. 3 Operating the Scanner Describes how to use the scanner to scan 1-Dimensional and 2-Dimensional bar codes.
Preface Chapter Title Appendix D AIM Code Identifiers Appendix E Advanced Data Formatting Appendix F European Union Directive Compliance P–3 Contents Describes the AIM Code Identifiers that can be transmitted with decoded data. Describes how to customize data before it is transmitted to your host device. Provides details for using the scanner in industrial environments requiring compliance with European Union Directives. Provides terms found within this document.
Chapter 1 Scanner Features This chapter describes the features of the 2-D Bar Code Scanners, including: • major features • LED indicators • smart raster capability • scanning options • configuration options • decoding options • scanning ranges • safety labels • accessories Publication 2755-6.
1–2 Scanner Features Scanner Features The 2-D scanner emits a raster scanning pattern which is capable of scanning both: • One-dimensional bar codes • Two-dimensional bar codes (PDF417 bar codes) The scanners use a low power visible (red) laser diode for scanning, which can read color bar codes and symbols printed on just about any substrate. The trigger turns on the laser which scans a label at approximately 560 scans per second.
Scanner Features 1–3 LED Indicators On the back of the scanner there is a clear window through which two LEDs are visible. Green Red Green LED = Decode, indicating that a bar code symbol has been scanned and decoded. LED remains on until the next scan (trigger pressed). The scanner indicates a successful decode through an audible beep and the decocde (Green) LED. Red LED = Scanning, indicating that the laser light is on and alignment of the scanner with the bar code. Publication 2755-6.
1–4 Scanner Features Safety Labels The scanners use a low power visible laser diode. As with any bright light source, you should avoid staring directly into the beam. Momentary exposure to a CDRH Class II laser is not known to be harmful. The following figure shows the location of all safety labels as they appear on the scanner. LASER LIGHT DO NOT STARE INTO BEAM CLASS 2 LASER PRODUCT 680nm LASER 1.0 MILLIWATT MAX OUTPUT AVOID EXPOSURE LASER LIGHT IS EMITTED FROM THIS APERATURE. Appears on both sides.
Scanner Features 1–5 Smart Raster The scanner has a programmable smart raster capability, which causes the scanner to emit a raster pattern dynamically adjusted to the height of a 2-D (PDF417) bar code. To increase scanning efficiency and decrease decode time, the scanner determines the height of the bar code and then opens the scan pattern to a size optimal for decoding the bar code. In normal smart raster operation, a trigger pull causes a slab raster pattern to appear.
1–6 Scanner Features Scanning Options The scanner has 3 scanning options: aiming dot, slab raster and always raster. Aiming Dot A trigger pull creates the single aiming dot pattern, which lasts for a fixed interval. This dot is easily visible in outdoor or high ambient light environments. After the aiming dot, a slab raster or open raster pattern appears, depending on the configured scanning option. You can select the aiming dot option with either a normal or extended timeout period.
Scanner Features 1–7 Configuration Options The scanner is adaptable to a wide variety of applications by scanning configuration bar codes. The configuration bar codes control the operation of: • decoding • scanning • communications The 2-D scanner provides full host compatiblility through a Synapse cable with programmable options. Chapters 4 and 5 describe the configuration options.
1–8 Scanner Features Scanning Ranges The scanner can read bar code symbols at various distances depending on the type of bar codes and the bar code width (width of bars or spaces). This section show the read ranges for both the: • 1-D bar codes • 2-D bar codes Read Ranges 1-D Bar Codes Minimum Bar Code Width Read Range (Catalog No. 2755-HTG-4) Inches / Centimeters 6.0 mil (.15 mm) 2.0 in to 7.25 in (5.1 cm to 18.4 cm) 7.5 mil (.19 mm) 2.0 in to 8.0 in (5.1 cm to 20.3 cm) 20.0 mil (.51 mm) 2.
Scanner Features 1–9 Read Ranges 1-D Bar Codes 10 (25.4 cm) 5 (12.7 cm) Scan Width Scanner 0 5 (12.7 cm) 6 mil (0.15 mm) 10 (25.4 cm) 7.5 mil (0.19 mm) 20 mil (0.51 mm) 40 mil (1.02 mm) 55 mil (1.40 mm) 0 inches centimeters 5 12.7 10 25.4 15 38.1 20 50.8 25 63.5 30 76.2 Distance From Front of Scanner Publication 2755-6.
1–10 Scanner Features Read Ranges 2-D Bar Codes (PDF417) Minimum Bar Code Width Read Range (Catalog No. 2755-HTG-4) Inches / Centimeters 6.0 mil (.15 mm) 1.5 in to 5.75 in (3.8 cm to 14.6 cm) 10.0 mil (.26 mm) 1.25 in to 8.25 in (3.2 cm to 21.0 cm) 15.0 mil (.39 mm) 1.5 in to 11.50 in (3.8 cm to 29.2 cm) Read Ranges 2-D Bar Codes 5 (12.7) 2.5 (6.4) Scan Width Scanner 0 2.5 (6.4) 5 (12.7) 6 mil (0.15 mm) 10 mil (0.26 mm) 15 mil (0.39 mm) 0 inches 1 centimeters 2.54 2 5.1 4 10.1 6 15.
Scanner Features 1–11 Accessories The following accessories are available. Scanner Cable – Connects scanner to Synapse cable. See page 2–4. • 8 ft. / 2.44 meter (Catalog No. 2755-HTC-GS1-08) RS-232 Synapse Cables – Provides RS-232 output. Cables are configurable. See page 2–6. • RS-232-C, 25-pin DB, male, Txd on Pin 3 (Catalog No. 2755-HFC-SR2-01) • RS-232-C, 9-pin DB, female, Txd on Pin 2 (Catalog No. 2755-HFC-SR3-01) Publication 2755-6.
1–12 Scanner Features Power Supplies – Connects to RS-232, keyboard wedge or scanner emulation Synapse cable. Provides power to scanner➀. • 100 - 240 VAC, 50 - 60 Hz (Catalog No. 2755-HFP-D1) • Power cable for power supply, IEC 320 terminated, US 110V AC (Part No. 77121-801-01) • Power cable for power supply, IEC 320 unterminated, US 240V AC (Part No. 77121-801-02) • Power cable for power supply, IEC 320 unterminated, European 240V AC (Part No.
Scanner Features 1–13 Scanner Emulation Synapse Cable – Provides undecoded scanner output. See page 2–5. Multi-mount Stand – Rubber coated, fixed mount holder for counter or wall mounting. • (Catalog No. 2755-HFN-K3) Protective Boot – Heavy canvas boot provides additional protection for the scanner. • (Catalog No. 2755-HTN-H1) Publication 2755-6.
Chapter 2 Connecting the Scanner This chapter describes how to connect the scanner to various cables and hardware.
2–2 Connecting the Scanner Overview The scanner may be connected to a variety of host devices through a synapse cable. The communication parameters for the cables are configured by scanning bar codes. The three types of cables are: • RS-232 Synapse cable • Keyboard Wedge Synapse cable • Scanner Emulator Synapse cable All configuration bar codes are in the Programming Guide for 2-D Bar Code Scanners. Publication 2755-6.
Connecting the Scanner 2–3 Scanner Cable Connection The scanner cable (Catalog No. 2755-HTC-GS1-08) connects to the bottom of the scanner handle. The other end of the scanner cable connects to the Synapse cable. Locking Collar Connector Cable Connector Slot for Tab on Collar To attach the cable to the scanner: 1. Pull back the locking collar from the connector. 2. Insert the cable connector into the scanner. 3. Align the tabs on the locking collar with the slots on the handle. 4.
2–4 Connecting the Scanner Scanner Cable to Synapse Cable Connection To connect the scanner cable to a Synapse cable, push the cable into the connector until you hear the connector snap in place. To remove the scanner cable, press down on the small raised bump on the connector end and remove cable. Scanner Scanner Cable Press Here to Remove Synapse Cable (2755-HFC-SR3-01 shown) Publication 2755-6.
Connecting the Scanner 2–5 Scanner Emulation Synapse Cable Connections Use the Scanner Emulation Synapse cable to provide undecoded output to a scanner input port of a bar code decoder (cable has female 9-pin DB connector). Catalog No. 2755-HFC-SA1-01 A separate power supply provides power to the scanner. The power supply plugs into the Scanner Emulation Synapse cable. Power Supply Scanner Cable Scanner Scanner Emulation Synapse Cable (2755-HFC-SA1-01) Note: Connect the power supply last.
2–6 Connecting the Scanner RS-232 Synapse Cable Connections Use the RS-232 Synapse cable to connect the scanner to any host RS-232C input port. Two types of RS-232 Synapse cables are available: Catalog No. 2755-HFC-SR2-01 Catalog No.
Connecting the Scanner 2–7 Connect the scanner to an RS-232 port as shown below. A separate power supply provides power to the scanner. The power supply plugs into the RS-232 Synapse cable. Scanner Scanner Cable Power Supply RS-232 Synapse Cable (2755-HFC-SR3-01 shown) Note: Connect the power supply last. To Host RS-232 Port Host with RS-232 Port Publication 2755-6.
2–8 Connecting the Scanner Keyboard Wedge Synapse Cable Connections Use the Keyboard Wedge Synapse cable to connect the scanner between a keyboard and a host device. The host device interprets the decoded scanner output the same as keyboard data. Four types of Keyboard Wedge Synapse cables are available: Catalog No. 2755-HFC-SP1-01 Catalog No. 2755-HFC-SP2-01 Catalog No. 2755-HFC-SV1-01 Catalog No.
Connecting the Scanner Power Supply (May not be required, see previous page.) 2–9 Scanner Scanner Cable Wedge Synapse Cable (2755-HFC-SP1-01 shown) Note: Connect the power supply last. To Host Keyboard Connector To Keyboard To connect the scanner cable to the keyboard wedge cable, push the cable into the connector until you hear the connector snap in place. To remove the scanner cable, press down on the small raised bump on the connector end and remove cable.
2–10 Connecting the Scanner Scanner to Enhanced Decoder Scanner Port Connection Use the Scanner Emulation Synapse cable (Catalog No. 2755-HFC-SA1-01) and Gun Adapter (Catalog No. 2755-NC16, Series B) to connect the scanner cable to a scanner port on the Allen-Bradley Enhanced Decoders (2755-DS1/DD1). Scanner Power Supply Scanner Cable Scanner Emulation Synapse Cable (2755-HFC-SA1-01) Note: Connect the power supply last. Gun Adapter (Catalog No.
Connecting the Scanner 2–11 Scanner to Enhanced Decoder Aux Port Connection Use the 25-pin RS-232 Synapse cable (Catalog No. 2755-HFC-SR2-01) to connect the scanner cable to Aux port on the Allen-Bradley Enhanced Decoders (2755-DS1/DD1). Scanner Scanner Cable Power Supply 25-pin RS-232 Synapse Cable (2755-HFC-SR2-01) Note: Connect the power supply last. Null Modem Adapter Allen-Bradley Enhanced Decoder (2755-DS1/DD1) Publication 2755-6.
2–12 Connecting the Scanner Scanner to Flexible Interface (RB) Module Connection Use the 25-Pin RS-232 Synapse cable (Catalog No. 2755-HFC-SR2-01) to connect the scanner cable to a port on the Flexible Interface Module (Catalog No. 2760-RB). The protocol cartridges (Catalog No. 2760-SFC1, -SFC2) support RS-232 communications. Scanner Scanner Cable Power Supply RS-232 Synapse Cable (2755-HFC-SR2-01) Note: Connect the power supply last.
Connecting the Scanner 2–13 Scanner to PLC Connection Use the 25-Pin RS-232 Synapse cable (Catalog No. 2755-HFC-SR2-01) to connect the scanner cable to the Channel 0 port of a PLC-5. The Channel 0 port must be configured for RS-232 communications. Scanner Power Supply Scanner Cable RS-232 Synapse Cable (2755-HFC-SR2-01) Note: Connect the power supply last.
2–14 Connecting the Scanner Scanner to SLC Connection Use the 9-Pin RS-232 Synapse cable (Catalog No. 2755-HFC-SR3-01) to connect the scanner cable to the Channel 0 port on an SLC-5/03 or 5/04. The Channel 0 port must be configured for RS-232 communications. Scanner Scanner Cable Power Supply RS-232 Synapse Cable (2755-HFC-SR3-01) Note: Connect the power supply last.
Chapter 3 Operating the Scanner This chapter describes how to operate the scanner, including: • Scanning 1-D bar codes • Scanning 2-D bar codes • Scan the Entire Label • Specular Reflection • Dead Zone • Beeper Indications Publication 2755-6.
3–2 Operating the Scanner Scanning 1-D Bar Codes Any scan pattern is adequate for scanning 1-D bar codes. 1. Verify that all connections are secure. 2. Aim the scanner. • Aim the scanner at the bar code. • Press the trigger. The red LED should light. • For proper orientation, while using a scanning pattern, center the beam on the bar code as shown below.
Operating the Scanner 3–3 Scanning 2-D Bar Codes 1. Verify that all connections are secure. 2. Aim the scanner. Try to keep the nose of the scanner parallel with the symbol’s rows. 3. Scan a label. • Make sure the symbol you want to scan is within the scanning range (3 to 8 inches). See page 1–10. • Press the trigger. The scan pattern first covers the symbol horizontally.
3–4 Operating the Scanner When the scanner has decoded a symbol successfully: • laser turns off • green LED lights • short, high-tone beep occurs 4. Decoded data is transmitted to the host device using the communication parameters described in Chapter 5. Scan the Entire Bar Code Symbol • The larger the symbol, the farther away you should hold the scanner to permit the raster pattern to cover the symbol (but not more than 8 inches).
Operating the Scanner 3–5 – The vertical scan pattern is not high enough to cover a tall PDF417 symbol. Move the scanner slowly down toward the bottom of the symbol, keeping the beam horizontal to the rows, and then slowly back upward toward the top. Moving Scan Pattern Up and Down on Tall PDF Symbol – The scan beam does not have to be perfectly parallel with the top and bottom of the symbol (up to a 4_ tilt will work). Publication 2755-6.
3–6 Operating the Scanner Specular Reflection When the laser beam reflects directly back into the scanner from the decode, it can blind the scanner and make decoding difficult. This is called specular reflection. To avoid this, scan the bar code so that the beam does not bounce directly back. Do not scan at too oblique an angle; the scanner needs to collect scattered reflections from the scan to make a successful decode. Simple practice shows what tolerances to work within.
Operating the Scanner 3–7 Dead Zone When scanning a 1-D bar code, there is only a small specular dead zone to avoid (+2_ from the direct laser beam). The specular dead zone is larger when scanning PDF417 (+9_ from the direct laser beam). At the same time, the scanner is not effective if its beam hits the bar code’s surface at an angle greater than 30_ from normal to that surface. 1. Successful Scanning 2.
3–8 Operating the Scanner Beeper Indications When scanning a bar code symbol, listen for a single, short beep from the scanner. This beep indicates a successful decode. Refer to the tables below for all other responses. Beeper Indications During Normal Operation This Response Indicates 1 Beep (short high tone) Bar code symbol decoded. Beeper Tone must be enabled. 1 Beep (long high tone) Thermal shutdown. 3 Beeps (short high tone) 4 Beep (high/high/high/high tone) Power-on or reset.
Operating the Scanner 3–9 Beeper Indications During Communication This Response 4 Beeps (short high tone) 4 Beeps (high / high / high / low tone) 3 Beeps (low / high / low tone) Indicates Communication error in the indication field. Receive error. ADF transmit error. Publication 2755-6.
Chapter 4 Configuring the Scanner This chapter describes the scanner configuration options. Important Notes on Configuring Scanner • Bar codes for configuring the scanner and Synapse cable are located in the Programming Guide for 2-D Bar Code Scanners (Publication 2755-6.7). • Configure the scanner. • Configure the Synapse cable. Separate configuration codes are scanned to configure the cable.
4–2 Configuring the Scanner Configuring the Scanner 1. Connect the appropriate Synapse cable to the scanner. 2. Apply power to the Synapse cable (if required). 3. Scan the Set Defaults bar code (in the Programming Guide for 2-D Bar Code Scanners) to configure the scanner with default settings. Table 4.A lists the scanner default settings. 4. Scan individual bar codes (in the Programming Guide for 2-D Bar Code Scanners) for parameters you want to change. 5.
Configuring the Scanner Configuration Parameters 4–3 Default Setting Programming Guide Reference None 1-10 Code Lengths Code 39 – Any Length Code 39 – Length Within Range Range (1-55) 1-10 Code 39 – 1 Discrete Length None 1-10 Code 39 – 2 Discrete Lengths None 1-10 Codabar – Any Length Range (2-55) 1-11 Codabar – Length Within Range Range (2-55) 1-11 Codabar – 1 Discrete Length None 1-11 Codabar – 2 Discrete Lengths None 1-11 Range (2-54) 1-12 Interleaved 2 of 5 – Any Length In
4–4 Configuring the Scanner Set Defaults Scan the Set Defaults bar code to return all parameters to the default values listed in Table 4.A. Select Symbologies Scan the bar code labels for the symbologies you want the scanner to decode. Only enable the symbologies you expect to read. The scanner automatically discriminates between all of the symbologies below. The only exception is that the scanner cannot discriminate between Code 39 and Code 39 Full ASCII.
Configuring the Scanner 4–5 Code 39 Options Code 39 Full ASCII The ASCII character set assigns a code to letters, punctuations marks, numerals, and most control keystrokes on the keyboard. The first 32 codes are non-printable and are assigned to keyboard control keys, such as Backspace and Return. The other 96 are called printable codes because all but Space and Delete produce visible characters.
4–6 Configuring the Scanner UPC / EAN Options The section defines options available for UPC-A and UPC-E codes. Transmit UPC-A Check Digit When enabled, UPC-A symbol data is transmitted with the check digit. Enabled is the default. Transmit UPC-E Check Digit When enabled, UPC-E symbol data is transmitted with the check digit. Enabled is the default. Convert UPC-E to UPC-A When enabled, this option converts UPC-E (zero suppressed) decoded data to a UPC-A format before transmission.
Configuring the Scanner 4–7 UPC / EAN Options (Continued) Convert EAN-8 to EAN-13 When enabled, five leading zeros are added to decoded EAN 8 symbols. The five zeros make the EAN 8 symbols compatible with the EAN 13 format. Disabled is the default. UPC-A / UPC-E Preambles Three options are available for the lead-in characters of decoded UPC-A or UPC-E symbols transmitted to the host device. Select one preamble for UPC-A decodes and one for UPC-E decodes. The preamble is considered a part of the symbol.
4–8 Configuring the Scanner Code Lengths The length of a code refers to the number of characters (human readable characters) the code contains. You can set the code length for certain one-dimensional code types (Code 39, Codabar, Interleaved 2 of 5) to any length, one or two disrete lengths, or lengths within a specific range. You cannot set a discrete length for Code 128. Any Length Select this option to decode a one-dimensional code containing any number of characters.
Configuring the Scanner 4–9 Data Format Options Prefix / Suffix You can add a prefix/suffix to bar code data. To enter a prefix/suffix, you must scan a four digit number (four bar codes) that represents the ASCII equivalent value for each character (See ASCII Characters in Appendix C). When you enter the last digit of a prefix or suffix, the scanner lets you know that you have entered a valid value by providing a high-low-high beep. The default prefix/suffix is the ENTER key (ASCII equivalent 1073).
4–10 Configuring the Scanner Data Format Options (continued) Data Transmission Format You can specify whether or not the prefix and/or suffix is added to decoded bar code data. The options are listed below. Sends only bar code data. Sends bar code data with a prefix Sends bar code data with a suffix Sends bar code data with a prefix and suffix The prefix and suffix are user defined.
Configuring the Scanner 4–11 Transmit Code ID Character When enabled, this option transmits a code ID character or an AIM ID character to identify the code type of the symbol scanned. This option is useful if you are scanning more than one code type. If a prefix is defined, the code ID character is sent after the prefix and before the decoded symbol. The default is to not transmit a Code ID character. Code ID characters are listed below. AIM ID characters are listed in Appendix D.
4–12 Configuring the Scanner Decode Options Beep After Good Decode When enabled, the beeper sounds during scanning. We recommend that you operate the unit with the beeper enabled. The default is enabled. The beeper always operates during parameter menu scanning and indicates error conditions. See page 3–8 for beeper indications. Beeper Tone Sets the decode beep frequency or tone to low, medium or high. The default is high.
Configuring the Scanner 4–13 Decode Attempt Duration Sets the maximum time decode processing continues during a scan attempt. You set the duration in .1 second increments from 0.1 to 9.9 seconds. The recommended interval is between 1.0 and 5.0 seconds. The default is 5.0 seconds. A longer interval is appropriate for PDF417 symbols that are hard to decode. The duration is set by scanning a two digit number. For example, to set the interval to 6.
4–14 Configuring the Scanner Scanning Options Smart Raster Mode When enabled, Smart Raser Mode automatically detects the height of the PDF417 symbol and expands the raster pattern to cover the symbol vertically. Change this mode only if the raster pattern cannot cover a poorly printed symbol. The default is Smart Raster enabled. Hand–Held Options Select the scanning pattern. • Slab raster – In this mode, a trigger pull yields a slab raster pattern. This is the default.
Chapter 5 Communication Setup (Synapse Cable) This chapter describes how to configure scanner communication parameters. The types of options available depends on the synapse cable you are using.
5–2 Communication Setup (Synapse Cable) Setting RS-232 Synapse Cable Options This section defines the communication options available when the scanner is connected to one of these RS-232 Synapse cables: • Catalog No. 2755-HFC-SR2-01 • Catalog No.
Communication Setup (Synapse Cable) 5–3 Host Selection Currently, the only host selection is for standard RS-232 communications. Additional host selections may be added in the future. • Standard RS-232 (default) Baud Rate Sets the rate (bits per second) at which the scanner transmits data. The scanner baud rate setting must match the host setting. The selections are: • • • • • • • • 110 300 600 1200 2400 4800 9600 (default) 19200 Publication 2755-6.
5–4 Communication Setup (Synapse Cable) Setting RS-232 Synapse Cable Options (Continued) Parity Set the parity of each ASCII coded character that is transmitted. Make sure the parity matches the requirements of the host. The selections are: • • • • • Odd Even Mark (parity bit always set to 1) Space (parity bit always set to 0) None (default) Check Parity When enabled, the scanner checks the parity bit. Number of Stop Bits The stop bit marks the end of each character transmitted.
Communication Setup (Synapse Cable) 5–5 Hardware Handshaking When enabled, handshaking verifies the readiness of a receiving device before data is transmitted. You can enable or disable the hardware handshaking lines. The DTR (Data Terminal Ready) signal is either active high or low (see below). This is how the scanner handshaking functions: 1. The scanner checks the Clear to Send (CTS) line. If CTS is active, the scanner will wait for up to 2 seconds and check the line again.
5–6 Communication Setup (Synapse Cable) Setting RS-232 Synapse Cable Options (Continued) Software Handshaking Software handshaking controls the transmission of data. Use software handshaking instead of (but not with) hardware handshaking. The four options are: • • • • • None (default) ACK/NAK Only ENQ Only ACK/NAK with ENQ XON/XOFF ACK/NAK Only checks the result of a transmission.
Communication Setup (Synapse Cable) 5–7 Beep on BEL When enabled, the scanner will beep when a character is detected on the RS-232 link. may be used to indicate an event such as an illegal entry. Unknown Characters Unknown characters are characters not recognized by the scanner. When Send Bar Codes with Unknown Characters is enabled, all decoded bar code data is transmitted except for the unknown characters.
5–8 Communication Setup (Synapse Cable) Setting RS-232 Synapse Cable Options (Continued) Advanced Features The advanced feature options allow you to store communication parameters for up to two applications. If you have already configured the scanner, all of the communication settings are stored as Parameter 1 settings (default setting). Using the advanced feature options, you can also create Parameter 2 settings.
Communication Setup (Synapse Cable) 5–9 Setting IBM PC Keyboard Wedge Synapse Cable Options This section defines the communication options available when the scanner is connected to one of these IBM AT/XT or PS/2 Keyboard Wedge Synapse cables: • Catalog No. 2755-HFC-SP1-01 • Catalog No. 2755-HFC-SP2-01 Defaults Settings Scan the Set PC Wedge Synapse Cable Defaults bar code to set the synapse cable to default settings. The following table lists the default settings.
5–10 Communication Setup (Synapse Cable) Setting IBM PC Keyboard Wedge Synapse Cable Options (Continued) Host Selection Select the type of host the scanner will be communicating with. The selections are: • • • • IBM PC/AT , PS/2-50, 55SX, 60, 70, 80 (default) IBM PC/XT IBM PS/2-30 NCR 7052 Country Selection Select the country for the keyboard type the synapse cable is connected to.
Communication Setup (Synapse Cable) 5–11 Unknown Characters Unknown characters are characters not recognized by the scanner. When Send Bar Codes with Unknown Characters is enabled (default), all decoded bar code data is transmitted except for the unknown characters. If this option is disabled, bar codes containing one or more unknown characters are not transmitted. Intercharacter Delay Setting an intercharacter delay provides the host time to perform processing tasks between characters.
5–12 Communication Setup (Synapse Cable) Setting IBM PC Keyboard Wedge Synapse Cable Options (Continued) Advanced Features The advanced feature options allow you to store communication parameters for up to two applications. If you have already configured the scanner, all of the communication settings are stored as Parameter 1 settings (default setting). Using the advanced feature options, you can also create Parameter 2 settings.
Communication Setup (Synapse Cable) 5–13 Setting DEC VT520 Keyboard Wedge Synapse Cable Options This section defines the communication options available when the scanner is connected to this DEC Keyboard Wedge Synapse cable: • Catalog No. 2755-HFC-SV2-01 Default Settings Scan the Set DEC VT 520 Keyboard Wedge Synapse Cable Defaults bar code to set the Synapse cable to default settings. Refer to the table below for the default settings.
5–14 Communication Setup (Synapse Cable) Setting DEC VT520 Keyboard Wedge Synapse Cable Options (Continued) Host Selection Select the type of host the scanner will be communicating with. The selections are: • DEC VT520 (default) • DEC VT520 with PS/2 Keyboard Country Selection Select the country for the keyboard type the Synapse cable is connected to.
Communication Setup (Synapse Cable) 5–15 Intercharacter Delay Some devices require a delay between characters to simulate the effect of keystroke delays (characters are sent at a lower rate). The default is short delay (5 msec). The options are: • Short 5 msec delay (default) • Medium 50 msec delay • Long 99 msec delay Advanced Features The advanced feature options allow you to store communication parameters for up to two applications.
5–16 Communication Setup (Synapse Cable) Setting DEC VT220 / VT320 / VT420 Keyboard Wedge Synapse Cable Options This section defines the communication options available when the scanner is connected to this DEC Keyboard Wedge Synapse cable: • Catalog No. 2755-HFC-SV1-01 Default Settings Scan the Set DEC VT 20/320/420 Wedge Synapse Cable Defaults bar code to set the Synapse cable to default settings. The table below lists the defaults.
Communication Setup (Synapse Cable) 5–17 Country Selection Select the country for the keyboard type the Synapse cable is connected to. The selections are: • • • • • • • • North American (default) German French French International Spanish Italian Swedish British Unknown Characters Unknown characters are characters not recognized by the scanner. When Send Bar Codes with Unknown Characters is enabled (default), all decoded bar code data is transmitted except for the unknown characters.
5–18 Communication Setup (Synapse Cable) Setting DEC VT220 / VT320 / VT420 Keyboard Wedge Synapse Cable Options (Continued) Advanced Features The advanced feature options allow you to store communication parameters for up to two applications. If you have already configured the scanner, all of the communication settings are stored as Parameter 1 settings (default setting). Using the advanced feature options, you can also create Parameter 2 settings.
Communication Setup (Synapse Cable) 5–19 Setting Scanner Emulation Synapse Cable Options This section defines the communication options available when the scanner is connected to this Scanner Emulation Synapse cable: • Catalog No. 2755-HFC-SA1-01 Default Settings Scan the Set Scanner Emulation Cable Defaults bar code to set the Synapse cable to default settings. Refer to the table below for the default settings.
5–20 Communication Setup (Synapse Cable) Setting Scanner Emulation Synapse Cable Options (Continued) Emulation Select the type of emulation your decoder requires. The selections are: • • • • Standard Emulation (default) MSI Wand Emulation Texlon Wand Emulation Norand Wand Emulation Variable Leading Margin Sets the leading margin for wand emulation. The leading margin can be varied to allow more time for the decoder to wake up before the bar code data is received.
Communication Setup (Synapse Cable) 5–21 Emulation Timeout Determines how long: • the Synapse cable waits for the laser on signal from the scanner after the trigger is pulled. • the scanner waits for a decode LED (check if Decode LED is enabled). The options: • • • • • 3 second timeout (default) 4 second timeout 5 second timeout 10 second timeout 30 second timeout Polarity Sets the polarity of the wand emulation signal.
5–22 Communication Setup (Synapse Cable) Setting Scanner Emulation Synapse Cable Options (Continued) Convert All to Code 39 When enabled, decoded data is converted and transmitted as Code 39 data. Note: ASCII from the scanner is transmitted as Code 39 data. Code 39 to Code 39 Full ASCII When enabled, Code 39 data is transmitted as Code 39 Full ASCII. The full ASCII option allows the scanner to output any ASCII character or control code (including non-printable characters).
Communication Setup (Synapse Cable) 5–23 Advanced Features The advanced feature options allow you to store communication parameters for 2 separate applications. If you have already configured the scanner, all of the communication settings are stored as Parameter 1 settings (default setting). Using the advanced feature options, you can also create Parameter 2 settings. When using the scanner, scan the correct parameter setting bar code for each application.
Chapter 6 Troubleshooting and Maintenace This chapter describes how to troubleshoot and maintain the scanner. • troubleshooting chart • cleaning the scan window • Allen-Bradley Global Technical Support Publication 2755-6.
6–2 Troubleshooting and Maintenace Troubleshooting the Scanner This section provides a list of the most common operating problems, the probable causes, and suggested corrective actions. Problem Probable Cause(s) 1. Power supply not connected to Synapse cable. 1. Make sure power supply is connected and plugged into a power source. 2. Scan beam has timed out. 2. Normal operation. Release trigger completely and scan again. 3. Defective interface cable. 3. If possible, try another cable. 4.
Troubleshooting and Maintenace Problem Scan Beam Present, Symbols Not Read Data is decoded but not transmitted to host. 6–3 Probable Cause(s) Corrective Action 1. Scanner not set to decode symbol type scanned. 1. Verify the scanner decoder settings. 2. Scanner not held at slight angle to symbol. 2. Hold scanner at an angle to the symbol. 3. Scan beam not crossing entire symbol. 3. Make sure scan beam crosses every bar and space on the symbol. 4. Poor quality bar code symbols. 4.
6–4 Troubleshooting and Maintenace Cleaning the Scan Window You may need to clean the window of the scanner. Carefully clean the window by first removing loose particles of dirt with clean air. Then use an optical quality cloth moistened with an optical quality cleaning fluid for plastic lenses and wipe the window in a single direction (don’t wipe cloth back and forth across window). Do not leave streaks. ! ! ATTENTION: Do not use abrasive materials such as disposable wipes and facial tissue.
Appendix A Specifications Optical Scan Pattern Start Time Pattern Size 0.065 sec. to 75% of steady state horizontal amplitude; 0.50 sec. to 90% of steady state vertical amplitude At 9.5 in. (24.13 cm) from the nose of the scanner, the pattern is 7.2 in. (18.3 cm) horizontally and 2.4 in. (6.1 cm ) vertically. Scan Rate 560 scans/second 280 Hz 10 horizontal Frame Rate 25 frames/second 12.5 Hz 1 horizontal Optical Resolution Can decode a 6.
A–2 Specifications Mechanical Dimensions Inches 4.4 (L) x 2.5 (W) x 6.72 (H) Millimeters 112 (L) x 64 (W) x 170 (H) Weight 9.0 oz (252 g) without scanner cable Memory RAM 64K, 128K or 256K Flash 256K Environmental Operating Temperature -20_ to 40_C (-4_ to 104_F) Storage Temperature -40_ to 60_C (-40_ to 140_F) Humidity 5% to 95% (noncondensing) Shock 5ft (1.
Appendix B Scanner Pinout Connections Pin #1 Pin #10 Function Synapse Cable Pin 1 +5V power supply 2 Trigger Signal output/input 3 Transmit (TxD) 4 Receive (RxD) 5 Ready to Send (RTS) 6 Clear to Send (CTS) 7 Synapse Control Data 8 Synapse Control Clock 9 Ground 10 Data Terminal Ready (DTR) Publication 2755-6.
Appendix C ASCII Chart This appendix lists: • • • • • ASCII chart ALT key values Miscellaneous key values Numeric key values Numeric Keypad key values ASCII Value Full ASCII Code 39 Encode Char. Character (Control Code) ASCII Value Full ASCII Code 39 Encode Char.
C–2 ASCII Chart ASCII Value Full ASCII Code 39 Encode Char. Character ASCII Value Full ASCII Code 39 Encode Char. Character 1032 SP SP 1057 9 9 1033 /A ! 1058 /Z : 1034 /B ” 1059 %F ; 1035 /C # 1060 %G < 1036 /D $ 1061 %H = 1037 /E % 1062 %I > 1038 /F & 1063 %J ? 1039 /G ‘ 1064 %V @ 1040 /H ( 1065 A A 1041 /I ) 1066 B A 1042 /J * 1067 C C 1043 /K + 1068 D D 1044 /L , 1069 E E 1045 - - 1070 F F 1046 . .
ASCII Chart ASCII Value Full ASCII Code 39 Encode Char. 1082 C–3 Character ASCII Value Full ASCII Code 39 Encode Char.
C–4 ASCII Chart ALT Key Values ALT Key Value Keystroke ALT Key Value Keystroke ALT Key Value Keystroke 2064 ALT 2 2075 ALT K 2086 ALT V 2065 ALT A 2076 ALT L 2087 ALT W 2066 ALT B 2077 ALT M 2088 ALT X 2067 ALT C 2078 ALT N 2089 ALT Y 2068 ALT D 2079 ALT O 2090 ALT Z 2069 ALT E 2080 ALT P 2091 ALT [ 2070 ALT F 2081 ALT Q 2092 ALT \ 2071 ALT G 2082 ALT R 2093 ALT ] 2072 ALT H 2083 ALT S 2094 ALT 6 2073 ALT I 2084 ALT T 2095 ALT - 2074 ALT J
ASCII Chart C–5 Numeric Key Values Numeric Key Value Keystroke Numeric Key Value Keystroke Numeric Key Value Keystroke 6042 * 6049 1 6056 8 6043 + 6050 2 6057 9 6044 Undefined 6051 3 6058 Enter 6045 – 6052 4 6059 Num Lock 6046 .
Appendix D AIM Code Identifiers Each AIM Code Identifier contains the 3-character string ]cm where: ] = Flag Character (ASCII 93) c = Code Character (see table below) m = Modifier (see table on next pages) Code Character / Generic Identifier Code Type A / ]A0 Code 39 C / ]C0 Code 128 E / ]E0 UPC/EAN I / ]I0 Interleaved 2 of 5 L / ]L0 PDF417 The modifier character is the sum of the applicable option values based on the following table.
D–2 AIM Code Identifiers Code Type Option Value 0 1 Code 128 2 Example: 0 EAN/UPC 1 2 4 Example: 0 1 Interleaved 2 of 5 2 Example: Option Standard data packet. No Function code 1 in first symbol position. Function code 1 in first symbol character position. Function code 1 in second symbol character position. A Code (EAN) 128 bar code 1234 with Function 1 character in the first position, Fcnt112345 will transmitted as ]C112345.
Appendix E Advanced Data Formatting Advanced Data Formatting (ADF) provides a way to customize data before transmitting it to a host device. Scan data can be edited to meet your particular requirements. Topics in this appendix include: • • • • • • • • • Rules Programming a Rule Criteria Actions ADF Formatting Example Alternate Rule Sets Default Rules Rules Hierarchy (in Bar Codes) Beeper Definitions Publication 2755-6.
E–2 Advanced Data Formatting ADF can be implemented by scanning a related series of bar codes, which appear in the Programming Guide (Publication 2755-6.7). The table below references the page location of the ADF bar codes.
Advanced Data Formatting E–3 Rules ADF data is customized using rules. These rules perform detailed actions when the data meets certain criteria. One rule may consist of single or multiple criteria applied to single or multiple actions. The following describes an example of a data formatting rule: • Criteria – Scan data is Code 39, Length 12, and data at the start position is the string 129. • Actions – Pad all sends with zeros to length 8, send all data up to X, send a space.
E–4 Advanced Data Formatting Programming a Rule When programming a rule, the rule must follow a specific format. Plan ahead before you start scanning. To program each data formatting rule: • Start the Rule. Scan the Start New Rule bar code. • Criteria. Scan the bar codes for all pertinent criteria. Criteria can include code type (e.g., Code 128), code length, or data that contains a specific character string (e.g., the digits 129). These options are described in the Criteria section. • Actions.
Advanced Data Formatting E–5 Criteria Code Types Select any number of code types to be affected. All selected codes must be scanned in succession, prior to selecting other criteria. If you don’t select a code type, all code types will be ignored. Code Length Define the number of characters the selected code type must contain. If you don’t select a code length, selected code types of any length will be affected.
E–6 Advanced Data Formatting Actions Select how to format the data for transmission. • Send Data – Send all data that follows, send all data up to a specific character selected from the Alphanumeric Keyboard bar codes, or send the next N characters. N= any number from 1 to 254, selected from the Alphanumeric Keyboard. • Setup Fields – Define fields as follows: – Move Cursor To Character – Scan this bar code, then any – – – – – printable ASCII character from the Alphanumeric Keyboard.
Advanced Data Formatting E–7 • Send Keystroke – Scan the Send “___ ” bar code for the keystroke you want to send. • Send Preset Value – Send Values 1 through 6 by scanning the appropriate bar code. These values must be set using the Scan Prefix or Scan Suffix bar codes located on page 1-16. • Modify Data – Modify data in the ways listed. The following actions work for all send commands that follow it within a rule.
E–8 Advanced Data Formatting ADF Formatting Example This section shows how ADF rules are entered and used for scan data. An auto parts distributor wants to encode manufacturer ID, part number, and destination code into their own Code 128 bar codes. The distribution center also has products that carry UPC bar codes, placed there by the manufacturer.
Advanced Data Formatting E–9 Rule 1 – The Code 128 Scanning Rule Step Bar Code On Page Beeper Indication 1 Scanner Port 2 Code 128 G-5 High High High High 3 Send next 5 characters G-15 High High 4 Send [CTRL M] G-34 High High 5 Send next 5 characters G-15 High High 6 Send [CTRL P] G-35 High High 7 Send next 2 characters G-15 High High 8 Send [CTRL D] G-33 High High 9 Save Rule G-2 High Low High Low On Page Beeper Indication Rule 2 – The UPC Scanning Rule Step Bar C
E–10 Advanced Data Formatting Alternate Rule Sets ADF rules may be grouped into one of four alternate sets which can be turned on and off as needed. This is useful when you want to format the same message in different ways.
Advanced Data Formatting E–11 The sale rule may look like this. When scanning a bar code of length 15: – – – – send the next 2 characters send the class key send the next 8 characters send the stock key To switch between the two sets of rules, a “switching rule” you must program a switch rule. This rule specifies what type of bar code must be scanned to switch between the two rule sets. For example, in the case of the “sale” rule above, you want the cashier to scan the bar code “M” before a sale.
E–12 Advanced Data Formatting Rules Hierarchy (in Bar Codes) In addition to the correct programming of rules, you must be aware of the order of programming individual rules. Program the most general rule last. All programmed rules are stored in a buffer. As they are programmed, they are stored at the top of a rules list.
Advanced Data Formatting E–13 Default Rules Every unit has a default rule to send all scan data. Units with custom software may have one or more default rules burned in. The rules hierarchy will check user programmable rules first, then the default rules. Default rules can be disabled by entering the following general rule in the user programmable buffer: When receiving scan data, send all data. Since this rule always applies, ADF will never go into the default rules.
E–14 Advanced Data Formatting Beeper Definitions – Error Indications When errors occur, the duration of tones very long. Beeper Sequence Indication Low–High–Low–High Out of rule memory. Erase some existing rules, then try to save rule again. (The current rule need not be re-entered). Low–Low Cancel rule entry. Rule entry mode exited because of an error or you asked to exit rule entry. Low–High Entry error, wrong bar code scanned. Re-enter criterion or action.
Appendix F European Union Directives If the 2-D Hand-Held Bar Code Scanner is installed within the European Union or EEA regions and has the CE mark, the following regulations apply. EMC Directive 2-D Hand-Held Bar Code Scanners This apparatus is tested to meet EMC Directive 89/336/EEC and Low Voltage Directive 73/23/EEC using the following standards, in whole or in part: • EN 55 022 : 1988 • EN 50 082-1 : 1992 IEC 801.2 : 1988 IEC 801.3 : 1988 IEC 801.
F–2 European Union Directives Publication 2755-6.
Glossary A ASCII American Standard Code for Information Interchange. A 7 bit-plus-parity code representing 128 letters, numerals, punctuation marks, and control characters. It is a standard data transmission code in the U.S. Asymmetric Width Growth Non-uniform growth of elements in a printer symbol. Autodiscrimination The ability of an interface controller to determine the code type of a scanned bar code. After this determination is made, the information content can be decoded.
G–2 Glossary Bar Code Density The number of characters represented per unit of measurement (e.g., characters per inch in one-dimensional symbologies, characters per square inch in PDF417). Bar Height The dimension of a bar measured perpendicular to the bar width. Bar Width Thickness of a bar measured from the edge closest to the symbol start character to the trailing edge of the same bar code. Bar Width Deviation Increase or decrease in bar width as compared with nominal bar width.
Glossary G–3 Byte On an addressable boundary, eight adjacent binary digits (0 and 1) combined in a pattern to represent a specific character or numeric value. Bits are numbered from the right, 0 through 7, with bit 0 the low-order bit. One byte in memory can be used to store one ASCII character. C Character A pattern of bars and spaces which either directly represents data or indicates a control function, such as a number, letter, punctuation mark, or communications control contained in a message.
G–4 Glossary Code Set of unambiguous rules specifying the way in which data may be represented. Codeword In PDF417, a single group of bars and spaces (4 bars and 4 spaces, for a total of 17 module widths) which represents one or more numbers, letters, or other symbols. Codeword PD (Codeword Percent Decode) Within a PDF417 symbol, the percentage of codewords which decoded successfully; the number of good codewords divided by the total number of codewords (data codewords plus error correction codewords).
Glossary G–5 D Dead Zone An area within a scanner’s field of view, in which specular reflection may prevent a successful decode. Decode To recognize a bar code symbology (e.g., UPC/EAN) and then analyze the content of the specific bar code scanned. To translate the bar/space pattern into defined characters within a defined symbology. Discrete Code A bar code or symbol in which the spaces between characters (intercharacter gaps) are not part of the code.
G–6 Glossary E EAN European Article Number. This European/International version of the UPC provides its own coding format and symbology standards. Element dimensions are specified metrically. EAN is used primarily in retail. Edge Roughness Edge irregularities as compared with a nominal bar edge. Element Generic term for a bar or space. Encoded Area Total linear dimension occupied by all characters of a code pattern, including start/stop characters and data.
Glossary G–7 H Host Computer A computer that serves other terminals in a network, providing such services as computation, database access, supervisory programs, and network control. I IEC International Electrotechnical Commission. This international agency regulates laser safety by specifying various laser operation classes based on power output during operation. Intercharacter Gap The space between two adjacent bar code characters in a discrete code.
G–8 Glossary L Laser An acronym for Light Amplification by Stimulated Emission of Radiation. The laser is an intense light source. Light from a laser is all the same frequency, unlike the output of an incandescent bulb. Laser light is typically coherent and has a high energy density. Laser Spot Size The diameter of the spot of laser light scanning the bar code, as measured at a given distance from the bar code. Smaller spot sizes yield higher resolution but power depth of focus.
Glossary G–9 Module The narrowest bar or space (unit of measure) in a code. The term is used by the Uniform Code Council in its description of UPC/EAN code; it is also used in the description of Code 128. Contiguous modules are used to form bars or spaces which are wider than one unit. Module Aspect Ratio The ratio of height to width of the narrowest bar or space, or unit of measure, in a bar code. N Nanometer A unit of measure used to define the wavelength of light. Equal to 10–9 meter.
G–10 Glossary O One-Dimensional Symbology Symbologies which encode data only in a linear or horizontal dimension (X-dimension); the symbol’s vertical height (Y-dimension) is redundant (e.g., UPC/EAN, Code 39). Opacity The capacity for material to interfere with transmission of light. Overhead The number of characters required for start, stop, and checking for a given symbol (in PDF417, also left and right row indicators and error correction codewords).
Glossary G–11 Programming Mode The state in which a scanner is configured for parameter values. Q Quiet Zone A clear space, containing no dark marks, which precedes the start character of a bar code symbol and follows the stop character. R Reflectance Amount of light returned from an illuminated surface. Resolution The narrowest element dimension which can be distinguished by a particular reading device or printed with a particular device or method.
G–12 Glossary S Scan Search for a symbol to be optically recognized. Scan Area Area intended to contain a symbol. Scanner An electronic device used to scan bar code symbols and produce a digitized pattern that corresponds to the bars and spaces of the symbol. Its three main components are: 1. Light source (laser or photoelectric cell) - illuminates a bar code. 2. Photodetector - registers the difference in reflected light (more light reflected from spaces). 3.
Glossary G–13 Start / Stop Character A pattern of bars and spaces that provides the scanner with start and stop reading instructions and scanning direction. The start and stop characters are normally to the left and right margins of a horizontal code. Symbol A scannable unit that encodes data within the conventions of a certain symbology, usually including start/stop characters, quiet zones, data characters, and check characters. Symbol Aspect Ratio The ratio of symbol height to symbol width.
G–14 Glossary U UPC Universal Product Code. A relatively complex numeric symbology. Each character consists of two bars and two spaces, each of which can be any of four widths. The standard symbology for retail food packages in the United States. V Visible Laser Diode (VLD) A solid state device which produces visible laser light. Laser light emitted from the diode has a wavelength of 670 to 680 nanometers. X X-Dimension Width of the narrowest element (bar or space) in a bar code symbol.
Index C 2-Dimensional Bar Codes PDF417, 1–2, 1–7 Scanning, 3–3 Accessories Keyboard Wedge Synapse Cable, 1–12 Power Supplies, 1–12 Protective Boot, 1–13 RS-232 Synapse Cable, 1–11 Scanner Cable, 1–11 Scanner Emulation Synapse Cable, 1–13 Stands, 1–13 Cables Connecting Keyboard Wedge Synapse, 2–9 Connecting RS–232 Synapse, 2–7 Connecting Scanner Emulation Synapse, 2–5 DEC VT220/320/420, 5–16, 5–18 DEC VT520, 5–13 Defaults, 5–1 IBM PC Wedge, 5–9 Keyboard Wedge, 1–12, 2–8 Overview, 2–2 RS-232 Synapse, 1–11,
Index I–2 Selecting Symbologies, 4–4 UPC / EAN Options, 4–6 Connecting Scanner to AUX Port of Enhanced Decoder, 2–11 to Flexible Interface Module, 2–12 to PLC, 2–13 to RS-232 Synapse Cable, 2–7 to Scanner Cable, 2–3 to Scanner Emulation Synapse, 2–5 to Scanner Port of Enhanced Decoder, 2–10 to SLC, 2–14 to Synapse Cable, 2–4 to Wedge Synapse Cable, 2–9 Decode Attempt Duration, 4–13 Decode Buffering, 4–12 Default Scanner Configuration, 4–2 Defaults Cable, 5–1 DEC VT220/320/420 Wedge Cable, 5–16 DEC VT520
Index I IBM PC Wedge Cable Advanced Features, 5–12 Country Selection, 5–10 Defaults, 5–9 Host Selection, 5–10 Intercharacter Delay, 5–11 Unknown Characters, 5–11 I–3 P Pause Duration, 4–12 PDF417 Bar Codes 2-Dimensional Codes, 1–2 Scanning, 1–7, 3–3 PLC Controller, Connecting to Scanner, 2–13 Power Supplies, 1–12 K Keyboard Wedge Synapse Cable, 1–12, 2–8 Connecting, 2–9 L Laser, Certification, A–2 Laser, Warning Label, 1–4 LEDs Decode, 1–3 Green, 1–3 Location, 1–2 Red, 1–3 LRC Checksum, 4–10 M Mechani
Index I–4 S Scan Stands Multi-Mount Stand, 1–13 Scanner 1-Dimensional Codes, 1–2, 1–7 2-Dimensional Codes, 1–2, 1–7 Beep Codes, 3–9 Cable, 1–11, 2–3 Cleaning, 6–4 Configuration, 4–1 Connecting to Enhanced Decoder, 2–10, 2–11 Connecting to Flexible Interface Module, 2–12 Connecting to PLC Controller, 2–13 Connecting to SLC Controller, 2–14 Default Settings, 4–2 Emulation Cable, 1–13, 2–5 Features, 1–2 Operation, 3–1 Pinout Connections, B–1 Raster Scanning, 1–2 Read Ranges, 1–8 Safety Labels, 1–4 Setting De
Index T Technical Support, GTS, 6–4 Telephone No., Technical Support, 6–4 Timeout Between Decodes Different Symbols, 4–15 Same Symbol, 4–15 Troubleshooting, 6–2 I–5 U UPC / EAN Convert UPC-E to UPC-A, 4–6 Decode Supplementals, 4–6 EAN 8 Zero Extend, 4–7 Preambles, 4–7 UPC-A Check Digit, 4–6 UPC-E Check Digit, 4–6 W Warning, Safety Label, 1–4 Publication 2755-6.
Synapset is a trademark of Symbol Technologies Inc. AdaptaScant is a trademark of Allen-Bradley Worldwide representation.
