Rockwell-automation 2755-DM9, -DM9E High Speed Decoder Manual de usuario Pagina 1

ALLEN-BRADLEYBulletin 2755High Speed Decoder(Catalog Numbers 2755-DM9 & -DM9E)User Manual

Chapter 1Using this Manual1–3Both warnings and cautions are found in this manual and on the equipment.The following symbols are used:WARNING: A warnin

InterfaceChapter 7Host Commands Using the RS-232 or RS-4227–8Example: Command: HC03603703504311Response: = 00CRComments: 036 =¤ character for the ACK

InterfaceChapter 7Host Commands Using RS-232 or RS-4227–9Command: IFfFunction: When sent, this command will enable or disable the 10 msec input filter

InterfaceChapter 7Host Commands Using the RS-232 or RS-4227–10Example: Command: IM2#1Response: =00LFComments: 2 = message length.#1 = source identific

InterfaceChapter 7Host Commands Using RS-232 or RS-4227–11Response =rr<end>Comments: MF = Set message format command.a through g are yes (1) and

InterfaceChapter 7Host Commands Using the RS-232 or RS-4227–12Comments: 1 = Bar code data sent.1 = Package count is sent.0 = Bar code type is not sent

InterfaceChapter 7Host Commands Using RS-232 or RS-4227–13Example: Command: MR 3Response: 310105MATCHCR=00CRComments:3 = match code table entry #3 is

InterfaceChapter 7Host Commands Using the RS-232 or RS-4227–14Example: Command: MW4102041289Response: =00LFComments: 4 = match table entry number1 = m

InterfaceChapter 7Host Commands Using RS-232 or RS-4227–15Example: Command: NM07NO-READResponse: =00CRComments: 07 = message length.NO-READ = header m

InterfaceChapter 7Host Commands Using the RS-232 or RS-4227–16Comments: OC = Set output condition and duration command.n = output number. This value

InterfaceChapter 7Host Commands Using RS-232 or RS-4227–17Command: PRFunction: Read the Package CountResponse: pppppp<end>=rr<end>Comments

A–B2Chapter2–1Description of HardwareThis chapter provides an overview of the Catalog Number 2755-DM9,-DM9E Bar Code Decoder. We also provide descrip

InterfaceChapter 7Host Commands Using the RS-232 or RS-4227–18Note: Host port communication parameters are not changed to default valueswith this comm

InterfaceChapter 7Host Commands Using RS-232 or RS-4227–19Command: SCldcsprrrrttttmFunction: Specifies operating parameters of the scan head.Response:

InterfaceChapter 7Host Commands Using the RS-232 or RS-4227–20Command: SLccssttuuvvwwxxyyzzFunction: Specifies code length for Code 39, Interleaved 2-

A–B8Chapter8–1Host Commands Using the RS-485 InterfaceIn this chapter, we tell you how to send host commands to the decoder whenyou are using the RS-4

Chapter 8Host Commands Using the RS-485 Interface8–2You can use RS-485 PCCC to communicate with a host programmablecontroller using a PCCC format. Th

Chapter 8Host Commands Using the RS-485 Interface8–3COMMAND (Byte 0) - The first byte indicates one of the followingcommands:• Unprotected Read• Diag

Chapter 8Host Commands Using the RS-485 Interface8–4The following table lists the status response codes for all of the commands.Binary ValueHexValueMe

Chapter 8Host Commands Using the RS-485 Interface8–5Use the unprotected read command to obtain data from the decoder’smemory. Using this command you

Chapter 8Host Commands Using the RS-485 Interface8–6HI- AND LOW ADDRESS (Bytes 4 & 5) - These bytes specify the area ofmemory in the decoder that

Chapter 8Host Commands Using the RS-485 Interface8–7Unprotected Read Reply FormatThe decoder’s reply to a read command has the following structure: UN

Chapter 2Description of Hardware2–2You can program many of the operating parameters of the decoder. Thisprogramming capability allows you to adapt t

Chapter 8Host Commands Using the RS-485 Interface8–8Continue read commands until a 00 (hexadecimal) status code is receivedindicating completion of th

Chapter 8Host Commands Using the RS-485 Interface8–9You can use the unprotected write command to send configurationparameters and commands to the deco

Chapter 8Host Commands Using the RS-485 Interface8–10the decoder’s memory where the host can write data (addresses are providedin hexadecimal):1) Conf

Chapter 8Host Commands Using the RS-485 Interface8–1101001000MSB LSB1000 =UnprotectedWriteBit #6 Set to 1For ReplyAlways Set to 0STATUS (Byte 1) - Ta

Chapter 8Host Commands Using the RS-485 Interface8–12the host using a write command to a specific address in the host’s memory.The host device does no

Chapter 8Host Commands Using the RS-485 Interface8–13description of the configuration parameters. For example to enable the largebuffer you would ins

Chapter 8Host Commands Using the RS-485 Interface8–14You can obtain diagnostic data on the communications link (RS-485Local-Area Network) using the di

Chapter 8Host Commands Using the RS-485 Interface8–15FUNCTION CODE (Byte 4)- The function code specifies the diagnosticcommand:00 = Diagnostic Loop01

Chapter 8Host Commands Using the RS-485 Interface8–16DATA (Bytes 4 through X) - Depending upon the function code, thefollowing data is returned:Read D

Chapter 8Host Commands Using the RS-485 Interface8–17Read Diagnostic Status - Seven diagnostic status parameters can be read:1) Mode/Status (00) (1 b

Chapter 2Description of Hardware2–3Figure 2.1Catalog Number 2755-DM9, -DM9E90-061-1Fourteen LED indicators (Figure 2.2) provide an indication of the d

Chapter 8Host Commands Using the RS-485 Interface8–18CBAASeries A, Revision A decoder would return- 00000000Series B, Revision C decoder would return

A–B9Chapter9–1Maintenance and TroubleshootingThis chapter provides maintenance procedures and troubleshootingcharts.!WARNING: Other than fuses, the de

Chapter 9Maintenance and Troubleshooting9–2 The power input module fuse protects the decoder from current overloads.The fuse is located next to the po

Chapter 9Maintenance and Troubleshooting9–3The module fuses are located on the decoder circuit board next to themodules (refer to Figure 9–2). To rep

Chapter 9Maintenance and Troubleshooting9–4Refer to Table 9.A for troubleshooting. It is impossible to list every possiblemalfunction. If a problem

Chapter 9Maintenance and Troubleshooting9–5Problem Probable Cause(s) Corrective Action(s)Unable to read a label. Improperly positioned scanhead or lab

A–B10Chapter10–1SpecificationsElectricalInput Line Voltage: 85-264 VAC, 47-63 HzPower: 50 VA maximum with scan head attached.MechanicalEnclosure: Stee

Chapter 10Specifications10–2Pulse Durations: Programmable from 10 to 9999 milliseconds(0 disables output) Accuracy ± 5 milliseconds.Conditions for Ou

A–BAAppendixA–1Setting Up the Programming TerminalIf you are using a Lear Siegler ADM 3E, follow these steps:Step 1 - Connect the scan head to the dec

Appendix ASetting Up the Programming TerminalA–2If you are using a DEC -VT100, follow these steps:Step 1 - Connect the scan head to the decoder.Step 2

Chapter 2Description of Hardware2–4Note: This LED may not correspond to a read output condition (refer to page4-41). In the triggered mode, the read

Appendix ASetting Up the Programming TerminalA–3The Catalog No. 1784-T45 Programming Terminal may be used to programthe 2755-DM9, -DM9E decoder. Set

Appendix ASetting Up the Programming TerminalA–4If you are using a Televideo 955, follow these steps:Step 1 - Connect the scan head to the decoder.Ste

Appendix ASetting Up the Programming TerminalA–5If you are using an Allen-Bradley 1770-T1, -T2, or -T3 programmingterminal, follow these steps:Step 1

A–BBAppendixB–1Default Parameters of DecoderThe following table lists the factory set default parameters of thedecoder. Type Default ParametersMessage

Appendix BDefault Parameters of the DecoderB–2Type Default ParametersScanner ControlLaser On Mode: ContinuousDecode Trigger: Package DetectCapture Cou

A–BCAppendixC–1ASCII Conversion TableASCII orControlChar.DecimalValueHexValueASCII orControlChar.DecimalValueHexValueASCII orControlChar.DecimalValueH

A–BDAppendixD–1Configuration Areas of MemoryPCCCAddressConfiguration ParameterNumberof Bytes(* = Default)Acceptable Values400h Send Bar Code Data 1 0

Appendix DConfiguration Areas of MemoryD–2PCCCAddressConfiguration ParameterNumberof Bytes(* = Default)Acceptable Values411h Host Port - Baud Rates (

Appendix DConfiguration Areas of MemoryD–3PCCCAddressConfiguration ParameterNumberof Bytes(* = Default)Acceptable Values42Fh Enable Code 128 1 0 = *No

Appendix DConfiguration Areas of MemoryD–4PCCCAddressConfiguration ParameterNumberof Bytes(* = Default)Acceptable Values494h Inter–Scan Timer 2 *0 = T

Chapter 2Description of Hardware2–5There are two communication port connectors on the decoder:• HOST port connector. The HOST port connector supports

Appendix DConfiguration Areas of MemoryD–5PCCCAddressConfiguration ParameterNumberof Bytes(* = Default)Acceptable Values4E2h Bar Code Type in Match Co

Appendix DConfiguration Areas of MemoryD–6PCCCAddressConfiguration ParameterNumberof Bytes(* = Default)Acceptable Values52Eh Bar Code Type in Match Co

Appendix DConfiguration Areas of MemoryD–7PCCCAddressConfiguration ParameterNumberof Bytes(* = Default)Acceptable Values57Ah Bar Code Type in Match Co

A–BEAppendixE–1Protocol SelectionThe following table lists the available options for host communications.PHYSICALINTERFACEFLOW CONTROLCOMMUNICATIONSL

A–BFAppendixF–1Transmission CheckThe decoder can generate three types of transmission checks:• Longitudinal Redundancy Check - A byte developed by an

Appendix FTransmission CheckF–2Transmission Check CodesASCIICHARACTERHEXVALUEBINARYVALUE*¤ABC¤¤CRLFISOHssSOH2A244142432424ODOA49017373010010 1010001

A–BGlossaryG–1AACKAn abbreviated term for PositiveAcknowledgement. A control codethat indicates that the previoustransmission block was received.addr

GlossaryG–2CRTAcronym for Cathode Ray Tube. Inthis manual, refers to theprogramming terminal.Ddecoder logicThe electronic package whichreceives the s

GlossaryG–3msecAbbreviation for millisecond (1/1000of one second).multidropA term used to describe multipledevices linked by a communicationsnetwork.m

GlossaryG–4start/stop characterA bar code character that providesthe scanner with start and stopreading instructions as well as codeorientation. The

Chapter 2Description of Hardware2–6Two DC output modules (Catalog No. 1781-OB5S) are provided with thedecoder. You can add up to six more AC or DC o

A–BIndexI–1AAccessories2-9ACK (Positive Acknowledgment)character4-24, 7-2AddressesCommand area8-11Configuration parametersAppendix DStatus/Counter8-7A

IndexI–2CCommand reply8-17Diagnostic commands8-16Communications ports2-5Configuration area of memoryAddressesAppendix DWriting to 8-15Connections, ele

IndexI–3FFeatures2-1Fields per package4-37Fields per scan4-37Filter, input4-27Function code8-4Fuse replacementOutput module 9-2Power input9-1GGroundin

IndexI–4MMenus and setup screens4-2Display bar code labels4-5Display/change configuration4-7Display status and counters4-6Microprocessor, description3

IndexI–5PProgrammable ControllerCommunication Commands(PCCC)Description8-2Format8-2Modes8-1Response codes8-4ProgrammingCableAppendix ADescription4-1Ex

IndexI–6SSelect fields4-11, 4-15Select operation menu4-5Send bar code data field4-20Send bar code type field4-20Send Codabar check character field4-23

IndexI–7TTransmission check charactersF-1Trigger ending conditions3-10Troubleshooting 9-3Two character commands7-2UUnprotected Read command8-5Unprotec

With major offices worldwide.Algeria • Argentina • Australia • Austria • Bahrain • Belgium • Brazil • Bulgaria • Canada • Chile • China, PRC • Colombi

Chapter 2Description of Hardware2–7The following output modules are available.Note: Output modules function as a switch, not as a power source.Catalog

Chapter 2Description of Hardware2–8The decoder will accept line voltages from 85 to 264 volts AC at a frequencyof 47 to 63 Hz without any adjustments

Chapter 2Description of Hardware2–9The following table lists the accessories that you may require for use with thedecoder.Catalog Number Item Descript

Solid state equipment has operational characteristics differing from those ofelectromechanical equipment. “Safety Guidelines for the Application,Insta

A–B3Chapter3–1How the Decoder OperatesThis chapter provides a brief description of how the decoder operates. Wealso provide a brief description of h

Chapter 3How the Decoder Operates3–2MICROPROCESSOR - The microprocessor reads the information obtainedby the data acquisition circuit, processes the

Chapter 3How the Decoder Operates3–3AC Output Module ApplicationFigure 3.3 illustrates a typical AC output module application. When usinghigh impedan

Chapter 3How the Decoder Operates3–4interfaces (RS-232, RS-422, and RS-485) provide a variety of ways toaccomplish communications with a host. Figure

Chapter 3How the Decoder Operates3–5Figure 3.5Communications Interface Examples (Continued)PLC TO DECODER USINGAN ASCII MODULERS-232 PLC TO DECODER US

Chapter 3How the Decoder Operates3–6Before you try to change the operating configuration of the decoder, youshould understand how configuration parame

Chapter 3How the Decoder Operates3–7will become effective immediately (except for host communicationsparameters listed below). If you want to enter c

Chapter 3How the Decoder Operates3–8In the triggered mode of operation, there are three possible trigger sources:• Host command - The command is gener

A–B4Chapter4–1Configuring Your DecoderBecause the decoder can be used many ways, you will need to configure thedecoder to meet the requirements of you

Chapter 4Configuring Your Decoder4–2Programming of the decoder is done through the AUX connector on the backof the decoder. The AUX port connector on

A–BTable of ContentsiChapter 1Chapter Objectives 1–1Overview of This Manual 1–1Intended Audience 1–2Conventions Used 1–2Warnings and Cautions 1–3Nomen

Chapter 4Configuring Your Decoder4–3Step 2 - Turn the decoder ON. The green LEDs, labeled POWER ON andCPU ACTIVE, will light.Step 3 - When the follow

Chapter 4Configuring Your Decoder4–4After selecting the CRT type, the following Select Operation menu willappear: 2755-DM9 Bar Code Reader VX

Chapter 4Configuring Your Decoder4–5(Continued)19876367 34567215987429245763019564748211094528045674895 76895778759903935426881119874545466477887997

Chapter 4Configuring Your Decoder4–6specified by the fields per package configuration parameter. Data that islost due to an overflow of the buffer do

Chapter 4Configuring Your Decoder4–7CAUTIONConfiguration changes may cause the discrete outputs to switch.If outputs are to remain ENABLED, press ESC.

Chapter 4Configuring Your Decoder4–8 -- SYMBOLOGY -- -------- LENGTHS -------- -------- SCANNER CONTROL --------CODE 39: Yes 00 00 00 00 0

Chapter 4Configuring Your Decoder4–9RESTART SYSTEM . . . Confirm (Y/N)Press the [Y] key to confirm the restart. Pressing the [N] key will cancel ther

Chapter 4Configuring Your Decoder4–10Depending upon the type of field (select or edit) that you are configuring, usethe commands listed in Table 4.A:T

Chapter 4Configuring Your Decoder4–11Type in the new data and press the [RETURN] key to close the field andenter the data.Note: Pressing the [ESC] key

Chapter 4Configuring Your Decoder4–12ASCII ControlCharacterEnter:ASCII ControlCharacterEnter:ASCII ControlCharacterEnter:NUL %@ VT %K SYN %VSOH %A FF

Table of ContentsiiChapter 4Setup Screen #1 4–17Setup Screen #1 Fields 4–20Message Format 4–20Data Check Characters 4–23Host Communications 4–24Packag

Chapter 4Configuring Your Decoder4–13(next) setup screen you would press the [RETURN] key. To select another ofthe displayed commands, press the [SPA

Chapter 4Configuring Your Decoder4–14Figure 4.1 shows the first setup screen. The first setup screen configures thecommunication parameters and host

Chapter 4Configuring Your Decoder4–15ReferenceLetterDescriptionFieldTypeOptions (Select FieldOnly)Valid Entries (Edit FieldOnly)aSend bar code field d

Chapter 4Configuring Your Decoder4–16ReferenceLetterDescriptionFieldTypeOptions (Select FieldOnly)Valid Entries (Edit FieldOnly)uHost port–baud rate.

Chapter 4Configuring Your Decoder4–17The following are detailed explanations of the fields on setup screen #1. Wehave provided reference letters (a t

Chapter 4Configuring Your Decoder4–18LABEL DELIMITER (i) - You can enter one of two options:1) The label delimiter characters being used. These chara

Chapter 4Configuring Your Decoder4–19Note: If you want more information on how check characters are generatedand what they mean, refer to Appendix F.H

Chapter 4Configuring Your Decoder4–20CODABAR CHECK CHAR (s)- Selecting YES for this field will enablethe decoder to compute and verify a code check ch

Chapter 4Configuring Your Decoder4–211) The ACK character you will be using. This entry is in decimal ASCIIcode (0 through 254). Refer to Appendix

Chapter 4Configuring Your Decoder4–22Note: The Decode Trigger Mode (on second setup screen) must be set forHost Command.ENABLE HOST PORT BUFFER (bb) -

Table of ContentsiiiChapter 7Chapter Objectives 7–1RS–232/RS–422 ASCII Command Protocol 7–1Single Character Commands 7–1Two Character Commands 7–2Resp

Chapter 4Configuring Your Decoder4–235) RS422: No flow control is selected.6) RS422 XON/XOFF: XON/XOFF flow control is selected.7) RS485 PCCC-1: PC

Chapter 4Configuring Your Decoder4–24Figure 4.2 shows the second setup screen. We have used lowercase letters toindicate fields of the configuration

Chapter 4Configuring Your Decoder4–25ReferenceLetterDescriptionFieldTypeOptions (Select FieldOnly)Valid Entries (Edit FieldOnly)jSpecified code length

Chapter 4Configuring Your Decoder4–26ReferenceLetterDescriptionFieldTypeOptions (Select FieldOnly)Valid Entries (Edit FieldOnly)wMatch table entry. Ed

Chapter 4Configuring Your Decoder4–27CODABAR ENABLE (d) - Selecting YES will enable the decoder todecode Codabar bar code labels. Codabar bar code la

Chapter 4Configuring Your Decoder4–28check character but not the start and stop characters. If you do not want tospecify a code length, enter a zero

Chapter 4Configuring Your Decoder4–29When you set the decoder trigger mode to package detect and send datapackets to the host, you must take into cons

Chapter 4Configuring Your Decoder4–302) Host - If you select host triggering, the decoder will trigger on when ahost start scan command is received an

Chapter 4Configuring Your Decoder4–31CAPTURE COUNT (o) - The capture count field sets the number ofidentical and valid scans that must be decoded befo

Chapter 4Configuring Your Decoder4–32numeric value from 1 through 8. This parameter must be met for a “Read“ tooccur (see Output section later in thi

Table of ContentsivUnprotected Write Command 8–10Unprotected Write Command Structure 8–10Unprotected Write Command Cont.Unprotected Write Reply Format

Chapter 4Configuring Your Decoder4–33Note: The timers (No-Read & Inter-Scan) have an accuracy of ± 5milliseconds.To assist you in setting the inte

Chapter 4Configuring Your Decoder4–34Note: The layout of the label must be such that the distance d is less than orequal to D for the scanner to scan

Chapter 4Configuring Your Decoder4–353) Match-Complete: Selecting the match complete option will turn on theoutput module when the number of matches m

Chapter 4Configuring Your Decoder4–36-or-• An invalid operation has occurred (no-read, required symbology notenabled, improper bar code length, etc.).

Chapter 4Configuring Your Decoder4–37the current match codes and loading new match codes. Auto Load (INPUT)does not cause match code data to be loade

Chapter 4Configuring Your Decoder4–38OUTPUT DURATION (Milliseconds) (y) - These fields specify the lengthof time an output is turned on. You may ente

Chapter 4Configuring Your Decoder4–393) Press the key which corresponds to your programming terminal. Afterspecifying the CRT type, the following wil

Chapter 4Configuring Your Decoder4–40The decoder will display: ------- MESSAGE FORMAT ------- ------- HOST COMM -----

Chapter 4Configuring Your Decoder4–416) If the YES option is not displayed, press the [SPACE] bar to select theYES option: ------- MES

Chapter 4Configuring Your Decoder4–428) Press the [SPACE] key to display the the Valid Package response mode: ------- MESSAGE FORMAT

Table of Contentsv2.1 Catalog No. 2755–DM9, –DM9E Decoder 2–3. . . . . . . . . . . . . . . . . . . . 2.2 LED Indicators 2–4. . . 2.3 Communications

Chapter 4Configuring Your Decoder4–4310) Press the [RETURN] key to enter the No-Read message and then pressthe [ESC] key to select the command bar. N

Chapter 4Configuring Your Decoder4–4412) In this example we want to turn output #1 on for 10 millisecondswhenever a I 2-OF-5 label containing the data

Chapter 4Configuring Your Decoder4–4514) Press the [SPACE] bar to select the YES option. Press [RETURN]. Usethe arrow keys to move the cursor to the

Chapter 4Configuring Your Decoder4–4616) Press the [SPACE] bar until the Match Entry option is displayed. Press[RETURN]. Use the right arrow key to

Chapter 4Configuring Your Decoder4–4718) Press the [RETURN] key. Press the [Y] key at the confirmation prompt.The decoder will display a message to w

A–B5Chapter5–1Installing the DecoderWe will present rules and recommendations for laying out, installing,and connecting the decoder. Carefully read t

Chapter 5Installing the Decoder5–2!WARNING: Do not remove the housing of the decoder. No usermaintenance of the decoder is required. An access panel

Chapter 5Installing the Decoder5–3The decoder and scan head are separate units that can be mounted onseparate surfaces. A 10 or 25-foot (3.05 or 7.62

Chapter 5Installing the Decoder5–4You will need four 1/4 - 20 hexagon-head capscrews with flat and splitlockwashers and nuts. Select a capscrew lengt

Chapter 5Installing the Decoder5–5Connect your equipment using the appropriate cables. Refer to Figure 5.4 asyou follow the step-by-step procedures p

A–B1Chapter1–1Using This ManualRead this chapter to familiarize yourself with the rest of the manual. You will learnabout:• Contents of the manual.•

Chapter 5Installing the Decoder5–6Step 4 - Connect the terminal that will be used for programming to the portlabeled AUX or AUXILIARY on the decoder.

Chapter 5Installing the Decoder5–74) After loosening the hold-down screws, modules can be pulled or pluggedinto the circuit board. Be careful not to

Chapter 5Installing the Decoder5–8!WARNING: If you are using output modules with voltagesexceeding 30 volts RMS or 42.4 volts peak / DC, the wiring t

A–B6Chapter6–1Communicating With a HostThis chapter provides a basic description of the decoder’s ability tocommunicate with a host device. In additi

Chapter 6Communicationg With a Host6–2Figure 6.1HOST Port Pin NumbersHOST Port on Decoder,Data Terminal Equipment (DTE)Note: Connect shield to shell o

Chapter 6Communicating With a Host6–3As shown in Figure 6.1 the RS-232 interface uses pins 2, 3, 4, 5 and 20 of theHOST port connector. Three of the

Chapter 6Communicationg With a Host6–4Figure 6.2Communications With RS-232 Host DeviceCTSRDTDHOST Port on Decoder,Data Terminal Equipment (DTE)Note: C

Chapter 6Communicating With a Host6–5Note: We recommend that you terminate the RS-422 lines if excessive noiseoccurs on long RS-422 communication link

Chapter 6Communicationg With a Host6–6Figure 6.4Communications in an RS-485 NetworkSee Note #1HOST Port on Decoder71415RS-485 + Transmit/ReceiveSHIE

Chapter 6Communicating With a Host6–7Bar code data is transmitted after the end of trigger or after a valid packageas specified by the RESPONSE MODE y

Chapter 1Using this Manual1–2You do not require any special knowledge to read this manual and follow itsinstructions. If the decoder will be used to

Chapter 6Communicationg With a Host6–8FieldNumber ofCharactersin eachFieldExplanation1. Start Character 0 or 1 Optional. ASCII character that indic

Chapter 6Communicating With a Host6–9FieldNumber ofCharactersin eachFieldExplanation15. End Message 0, 1, or 2Specifies the end of message control co

Chapter 6Communicationg With a Host6–10Example #3 - If a No-Read occurs, the decoder would transmit the following:#183Data From Scanner 1B3=No-Read==0

A–B7Chapter7–1Host Commands Using the RS or RS-422Interface In this chapter, we tell you how to send host commands to the decoder whenyou are using e

InterfaceChapter 7Host Commands Using the RS-232 or RS-4227–2ACK and NAK COMMANDS- If ACK/NAK communications protocol isselected as part of the commu

InterfaceChapter 7Host Commands Using RS-232 or RS-4227–3Responses to CommandsAfter receiving a command, the decoder will send a reply. Responsemessa

InterfaceChapter 7Host Commands Using the RS-232 or RS-4227–4Host CommandsThe remainder of this chapter describes the format of the following hostcomm

InterfaceChapter 7Host Commands Using RS-232 or RS-4227–5Command: CCabcdefFunction: Enables or disables decoder generated code check characters.Resp

InterfaceChapter 7Host Commands Using the RS-232 or RS-4227–6Example:Command: CM3Response: =00CRComments: 3 = output counter #300 = “command complete”

InterfaceChapter 7Host Commands Using RS-232 or RS-4227–7Command: DDFunction: Set decoder to default configuration.Response: =00CRLFNote: Host communi