Block-Transfer Programming Considerations

Communicating with Remote I/O	6-19

Is the block-transfer for a local I/O module?

yes

Sets the no response .NR bit (09).

Is the timeout .TO bit (08) set?

yes

Block-transfer is for a module in a remote rack.

Is the timeout .TO bit (08) set?

yes

Continues to request the block-transfer for 0-1 s before setting the .ER bit (12).

Re-initializes the request until the watchdog timer expires (4 s).

Continues to request the block-transfer until the watchdog timer expires (4 s).

Retries request once more before setting the .ER bit (12)

Block-Transfer

Programming

Considerations

For a list of block-transfer error codes, see the PLC-5 Programming Software Instruction Set Reference, publication 1785-6.1.

Read this section for information about general programming considerations and considerations for controller-resident local racks.

General Considerations

The following are general programming considerations when you are block-transferring I/O data.

Publication 1785-UM012D-EN-P - July 2005

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Bradley Smoker PLC-5 user manual Block-Transfer Programming Considerations, General Considerations

Contents

Enhanced Ethernet PLC-5 Programmable Controllers Important User Information Publication 1785-UM012D-EN-P July Summary of ChangesAdditional Ethernet PLC-5 Controller Enhancement Is on Summary of Changes Table of Contents Chapter MemoryChapter Communicating with Controller-Resident I/O Extended-Local I/O Communicating with a PLC-5 Adapter ChannelCommunicating with Devices on a DH+ Link Chapter Communicating with Devices on a Serial Link Protecting Your Programs Preparing Fault Routines Appendix B Processor Status File Appendix a System Specifications Appendix D Appendix C Appendix F Troubleshooting Appendix E Switch Setting Reference Index Appendix G Cable Reference Publication Title Publication Number Related PLC-5 Documentation Controllers in this manual only Term Definition This manual has three main sections Design Operate Maintain Manual Overview Preface Publication 1785-UM012D-EN-P July For Information About Using This Chapter Lay Out the SystemExtended-local I/O scanner For the Front Panels Identifying Controller ComponentsPLC-5/11, -5/20 and -5/26 controllers PLC-5/30 controllers Install memory module here Install battery here Keyswitch selects controller modeNo parity DF1 point-to-point One stop-bit 2400 bps Keyswitch selects controler modePLC-5/30 Controller Front Panell 4Understanding Your Programmable Controller Channel 1B status indicator lights green and red Channel 2B status indicator lights green and redInstall memory module here PLC-5 family member designation 6Understanding Your Programmable Controller External transceiver fuse Keyswitch selects controller modeConfigure this 3-pin port for PLC-5/20E Controller Front Panel PLC-5/40E and -5/80E Controller Front Panels PLC-5/40L and -5/60L Controller Front Panels Install battery here PLC-5 family member designation8Understanding Your Programmable Controller If You Want to MCP This Capability Lets You At housekeeping PLC-5/401771-ASB Remote I/O Link Cable Belden Scanner-mode PLC-5 controller 12Understanding Your Programmable Controller Controller transfers I/O data and status data usingConnect the controllers via the remote I/O link Publication 1785-UM012D-EN-P July 14Understanding Your Programmable Controller Scanner Selecting I/O modules Using This ChapterSelecting and Placing I/O Selecting I/O Modules Module Examples Selecting I/O Module DensityChoose this Type Explanation Input Output Selecting and Placing I/O 4Selecting and Placing I/O Publication 1785-UM012D-EN-P July Acceptable Range Placing System Hardware Mount the I/O chassis horizontally 51mm Wiring Duct 102mm 153mm2Placing System Hardware 102mm 51mm2 RFI, we recommend a steel enclosure Troubleshooting is convenientPreventing Electrostatic Discharge Protecting Your Controller 4Placing System Hardware Laying Out Your Cable RacewayCategorize Conductors Route Conductors Laying Out Your Backpanel Spacing Chassis Dimensions Series BSide 6Placing System Hardware Chassis and External Power Supply Dimensions Enclosure Recommended Grounding Configuration for Remote I/O SystemsGround Bus To Grounding Electrode System 8Placing System Hardware Publication 1785-UM012D-EN-P July Classification Term Relation to Controller Memory Addressing I/O and Controller Memory 2Addressing I/O and Controller Memory Addressing as It Relates to an I/O Terminal Choosing an Addressing Mode Nals 16-point ExampleInput Termi Group Point input module Point output module Word # Point ExamplePoint input module Controller memory Rack 6Addressing I/O and Controller Memory Example of Efficient I/O Image Table Use Use this table as a quick reference for addressing Addressing Mode GuidelinesAddressing Summary Addressing Block-Transfer Modules 8Addressing I/O and Controller Memory If Using this Slot Addressing Chassis Size ResultsAssigning Racks Slot Rack Racks 2 racks When assigning remote I/O rack numbers, use these guidelines Controller memory is divided into two basic areas Data, you specify it with a formatted address Understanding Data Storage Data-Table FilesSpecify the file in which the data is stored Formatted address 12Addressing I/O and Controller Memory Addressing File Types 14Addressing I/O and Controller Memory Words/1000 structures Structure1000words Program File Number of Words Used Understanding Program-File StorageValid Data Types/Values Are Accepts Any Specifying I/O Image Addresses AddressingValid formats for addressing data files are Specifying Logical Addresses Where IsTo Specify the Address of a Use these Parameters Word Level Example Bit Level Specifying Indirect AddressesTON, TOF, RTO Example Variable Explanation N115 N1115 Specifying Indexed AddressesValue Base Address Source N710 N720 SW1 Specifying Symbolic AddressesLS1 AUTO1 22Addressing I/O and Controller Memory Optimizing Instruction Execution Time and Controller Memory Following examples illustrate these concepts Use Application Effectively Using I/O Memory Introduction to PLC-5 Controller Scanning Configuring the system for controller-resident I/O 2Communicating with Controller-Resident I/O Program Scanning Transferring Immediate I/O Requests Transferring Discrete Data to Controller-Resident I/OTransferring Data to Controller-Resident I/O 4Communicating with Controller-Resident I/O Transferring Block-Transfer Data to Controller-Resident I/O Communicating with Remote I/O Configuring a controller channel as a scannerCommunicating to a remote I/O node adapter Category Product Catalog Number Can Connect Block-transfer data with remote I/O devices Introduction to Remote I/OAn example remote I/O system looks like this Designing a Remote I/O Link Link to communicate at the same transmission rate Network using a daisy chain or trunk line/drop lineConfiguration Transmission rate. Configure all devices on a remote I/O Catalog Number Series Configuring a Controller Channel as a Scanner Define an I/O Status File Specify Channel Configuration InformationSpecify the scan list Publication 1785-UM012D-EN-P July Cursor to the field, type an integer file number Diagnostic fileScanner mode link 57.6, 115.2, and 230.4 kbps This Field Define By Doing the Following For this Field Scan List Contains Specify the Scan ListScan list includes the following Do the Following 10Communicating with Remote I/O Appendix E Communicating to a Remote I/O Node AdapterRemote I/O Scan and Program Scan Loops ASB Adapter Modules, Do the Following See 12Communicating with Remote I/O Troubleshooting Remote I/O Communication Difficulties Adapter used in the remote I/O scan is the 1771-ASB Interrupt from STI or Fault RoutineRemote I/O Scan Extended Local Racks Description PLC-5 typeMaximum number of command blocks Block-Transfer Minor Fault BitsMinor Fault Description Channel pairMinor fault bits set Transfer read 16Communicating with Remote I/OPacket includes data if it is a block-transfer write Block-transfer module Yes See Block-Transfer Sequence with Status BitsYes Does this slot address Does the module respond? Go to Sets the error .ER bit Yes18Communicating with Remote I/O Yes Sets the done .DN bit Block-Transfer Programming Considerations Retries request once more before setting the .ER bitGeneral Considerations 20Communicating with Remote I/O For Controller-Resident Local Racks Monitoring Remote I/O Scanner Channels Monitoring transmission retriesStatus Field Location Description Rack Address FaultReset Field indicating the rack was globally reset Messages unable to receive ErrorMessages sent with error Messages Tab Messages = SDA messages + SDN messages Defined I/O status file 24Communicating with Remote I/ON1547 Present Bits Fault Bits Not Used Fault Bits Rack in a given chassis. Failure to set all the appropriate When you use a ladder program or the software toInhibit and reset an I/O rack, you must set or clear Reset and inhibit bits that correspond to each quarter Monitoring the status of the supervisory controller Configuring communication to a PLC-5 adapter channelCommunicating with a PLC-5 Adapter Channel Monitoring remote I/O adapter channels Into for the supervisory controller Configuring Communication to a PLC-5 Adapter Channel2Communicating with a PLC-5 Adapter Channel Controller Specify adapter settings Publication 1785-UM012D-EN-P JulyRemote I/O Adapter Cursor to the field and select the desired rate Default is rackStatus information Damage can result Specify the Discrete Transfer Configuration Files 6Communicating with a PLC-5 Adapter Channel Discrete Data and Block-Transfer Status 8Communicating with a PLC-5 Adapter Channel Adapter’s input file Input destinationEnter the file number decimal of the source data Enter the word number decimal of the source data 0x7 N5115 Programming Discrete Transfers Adapter ModeData to an Adapter Channel 10Communicating with a PLC-5 Adapter Channel Configure Block-Transfer Requests Data Monitor screen Adapter Mode Configuration screen12Communicating with a PLC-5 Adapter Channel BT000000 BT010000 BT011000 BT011001 BT011040 Must MatchBT100 Has a length of 64 words 14Communicating with a PLC-5 Adapter Channel Examples of Block-Transfer Ladder Logic Data Not Valid Bit PLC-5 adapter-mode processor is configured for rackCondition the use of BTR data with a data valid bit BR0200 BWO200 Word For status Output File Input File Module 16Communicating with a PLC-5 Adapter ChannelLocations of module 0 and 1 data Status bits sent to scanner Monitoring the Status of the Adapter ChannelAdapter channel status Monitoring the Status of the Supervisory Controller When this Bits It Indicates Monitoring Remote I/O Adapter Channels Messages received with errorAdapter Page PLC-5/40L and -5/60L processor Configuring the controller as an extended-local I/OFor Information About Go to Scanner Monitoring extended-local I/O status Have to use the 5 m cable and have the extra 1 m as slack CablingForm a custom cable length. For example, if you have a You cannot connect two 2 m cables together. You would Numbered 4, 5, 10, 11, 12, Processor-resident local I/O racks Transferring Data PLC-5/40L and -5/60L I/O Scanning and Update4Communicating with Extended-Local I/O PLC-5/40L and -5/60L Extended-Local I/O Scan Time Extended Local I/O Data Exchange Image UpdateDiscrete Data Transfer Remote I/O Scan 6Communicating with Extended-Local I/O Transferring Block Data Where Calculating Block-Transfer Completion TimeThis formula assumes 8Communicating with Extended-Local I/O Considerations for Extended-local Racks List This Field Specifies Configure by Doing the FollowingScan list Channel I/O configuration Want to get status information for that channel 10Communicating with Extended-Local I/O Or 1/2-SlotSlot Logical rack Logical racks 11/2 logical rack Remote I/O Scan List vs Extended-local I/O Scan List Automatically calculated based upon rack Valid rack entryAn asterisk * after a range indicates the last Screen Switch settings on the adapters are set correctlyDisplay the new configuration when you save edits Monitoring Extended-Local I/O Status Word Multiples Etc Entry Channel retry WordRetry counts Retry WordPage Estimating DH+ link performance Application guidelines Using the global status flag fileSelecting Devices That You Can Connect Selecting devices that you can connect Link design Link Design Better overall system performance Configuring the Channel for DH+ CommunicationYou must set switch assembly SW1 on the controller Serial port or a PLC-5 coprocessor, use channel 2 for Other used file. Unpredictable machine damage can result Diagnostic file File containing the channel’sLink ID Local link where the channel Status information Words long Information previously in this file is lost Using the Global Status Flag FilePass data System creates an integer file 64 words long 6Communicating with Devices on a DH+ Link Files are updated during housekeepingOctal N107 Octal N1010 Octal N1015 Octal N1030 Monitoring DH+ Communication Channels Monitoring messagesStatus Field Words Description Monitoring Data Sent with Acknowledgment Transmit NAK full Need updates once per secondNoise or a cabling problem Transmit confirm 10Communicating with Devices on a DH+ Link Monitoring Data Sent without Acknowledgment Monitoring General Status Token retry Noise or cabling problemsLinear scan failed Started linear scan below for more information PLC-5 Sending Command Type Maximum Packet Station Size Data WordsNodes Size and Number of Messages 14Communicating with Devices on a DH+ Link Message DestinationCompletes the message transaction Station Internal Processing Time 50 W 100 W + 250 W X 500 W =Words Average DH+ Link Response Time Test Results16Communicating with Devices on a DH+ Link Number of Controllers Number of Controllers Application GuidelinesPage RS-423 This Is Normally Used When You MethodCommunicating with Devices on a Serial Link Choosing Between 10-2Communicating with Devices on a Serial Link Using ChannelUser Mode System Mode Point-to-Point Use this Mode ForDF1 Master Mode DF1 Slave Mode Method Option Name Principal Benefits Port Transmission Polling Inactive Priority StationsChanging Modes Follow these guidelines If You Want to Use Configuring ChannelConfigure Channel 0 for DF1 Point-to-Point DF1 slave 10-9 DF1 master 10-12 User mode Serial Settings DF1 Enqs Option Settings To get status information for that channel Configure Channel 0 as a Slave StationSelect Enabled or Disabled Option is enabled Station address Error checking. CRC is more complete checkingSelect one of the following Driver Message ACK timeout Amount of time you want RTS send delay Amount of time that elapsesSignal and the beginning RTS signal 10-12Communicating with Devices on a Serial Link Configure Channel 0 as a Master Station This time allows the modem to Enter a valid value RTS send delayOctal Retried before being declared Polling Settings Between Station Polls Master messageIf you want the master station to Transmit Message transmit Priority poll file Default size is 64 wordsDefault size is 18 words Remote stations Word 2 through word Contains this InformationBeing polled, etc New remote station is polled File containing the channel’s Configure Channel 0 for User Mode Ascii ProtocolRemote mode change 10-18Communicating with Devices on a Serial Link 10-19 XON/XOFF Remotely EnableDisable If You Want To Select Monitoring Channel 0 Status Using the System Mode Status Display10-22Communicating with Devices on a Serial Link Device DCD recoverHigh Messages sent Modem Lines Using the User Mode Ascii Status Display Configuring channel 2 for Ethernet communication Using This Chapter Media and CablingCommunicating with Devices on an Ethernet Network 11-2Communicating with Devices on an Ethernet Network Manually Configuring ChannelNetwork Addressing Assigning Your IP Address 11-3 With programming software if Bootp is enabled Ethernet Channel 2 Configuration Fields Controller should respond Using Bootp to Enter Configuration InformationNetwork This field is required when you Broadcast Address 11-6Communicating with Devices on an Ethernet Network Editing the Bootptab Configuration File 11-8Communicating with Devices on an Ethernet Network Based on this configuration, the Bootptab file looks like Broadcast addressing 11-9 Subnet masks and gateways 11-11 Using Broadcast AddressingIf Bootp is enabled, you can’t change any Advanced Ethernet communications characteristics 11-10Communicating with Devices on an Ethernet Network C.dWhere a, b, c, d are between 0-255 decimalIf you change the default and need to reset it, type Form 11-12 Using Subnet Masks and GatewaysUsing Bootp to configure Be sure Bootp is enabled 11-13 If You are Then See Local subnet Subnet Mask Controller’s subnet maskSubnets Enter an address of the following form 130.151.132.1 Personal computer WindowsOr HP 9000 or VAX computer Server 130.151.194.xxx Ethernet TCP/IP network 11-14Communicating with Devices on an Ethernet Network Bootptab files that correspond to this example looks like Using Domain Name Service 11-16Communicating with Devices on an Ethernet Network Using the Embedded Web Server Diagnostic Information 11-18Communicating with Devices on an Ethernet Network This Counter Totals 11-20Communicating with Devices on an Ethernet Network This IndicatesApplication Memory Session Table Connections 11-21 11-22Communicating with Devices on an Ethernet Network Generating User Provided Web Pages Status Counter Control Output Timer Time values in T40 are!ABDTR-T40 Input image word is I0 is b!ABDTR-I0/b11-24Communicating with Devices on an Ethernet Network BCD 11-26Communicating with Devices on an Ethernet Network Importing User Page Files to the PLC-5 Controller 11-27 11-28Communicating with Devices on an Ethernet Network 11-29 Multihop Examples Following examples use this system configuration 11-31 Comparing Multihop and Non-Multihop Messages Over Ethernet Communicating with ControlLogix Devices11-32Communicating with Devices on an Ethernet Network Displayed on the data monitor screen Interpreting Error CodesController sets the .ER bit and enters an error code Code Hexadecimal Description 11-34Communicating with Devices on an Ethernet Network Interpreting Ethernet Status DataF00A Active screen Status Field Bytes Displays the Number Monitoring general Ethernet status Monitoring Ethernet replies Monitoring Ethernet commands11-36Communicating with Devices on an Ethernet Network Performance Host to Ethernet PLC-5 Controller Ethernet PLC-5 Performance ConsiderationsPersonal Computer 11-38Communicating with Devices on an Ethernet Network PLC-5 Controller Typed Write Packet Size File Assigning a privilege class to a node 12-4 Using protected controllers 12-6Protecting Your Programs 12-4 Channel Node privileges override the default privilege class Will be appropriate for a particular application Defining Privilege ClassesStructure Assigning a Privilege Class to a Channel or Offline File Assigning a Privilege Class to a Node12-4Protecting Your Programs 12-5 Page 13-11 Programming ConsiderationsForcing Forcing Inputs and Outputs Forcing SFC Transitions Extended Forcing13-2Programming Considerations Table as read data will be forced to zero during That you include in the extended force configurationDo not use BTR data tables files to store Non-block-transfer data. All non-block-transfer data 13-4Programming Considerations Enabled 003 ms Disabled 0015 msIncreased Program Scan Time Force Privileges Package Using Protected ControllersSetting Up and Using Extended Forcing With the Programming Software BTR #2 and ending at the end of BTR #4 Select Which Group of Data You Want to Force13-6Programming Considerations Select all of data file N11 Forces Must be of Type B, A, N, or D Binary Enable or Disable the ForcesUsing Extended Forcing with Time-Critical Applications Radix Force Screen Display OTL Enable the BTW 13-10Programming Considerations Using Special Programming Routines Priority Scheduling for Interrupts and MCPs Deciding When to Use Special Routines 13-12Programming Considerations Program Execution States Rescheduling Operation An MCP, STI, PII Does the program fault?Program would be executing if it were of a higher priority Interrupted 13-14Programming ConsiderationsI012 Program can be Defining and Programming Interrupt Routines Power-up routines Fault routinesPage Set Preparing Power-Up RoutinesSetting Power-Up Protection If S26/1 is After power loss, the controller Allowing or Inhibiting Startup Defining a Controller Power-Up ProcedurePortion of the fault routine associated with a particular Fault or power-up condition 15..............0 Use this BitPage For Information About See Preparing Fault RoutinesResponses to a Major Fault Understanding the Fault Routine Concept It Sets FaultsUnderstanding General Preparing Fault Routines Fault in a Remote I/O Chassis Inputs 15-4Preparing Fault RoutinesRemote inputs inactive Here are two programming methods you can use 15-5 If You Encounter Then Programming a Fault RoutineAvoiding Multiple Watchdog Faults To fault mode without completing the fault routine Cause of the fault before clearing it Setting an AlarmClearing a Major Fault Fault. Be sure to examine the fault bit and correct 15-8Preparing Fault Routines Example of Comparing a Major Fault Code with a ReferenceIf the Fault Routine Then the Controller Then faults Changing the Fault Routine from Ladder Logic Ways to Recover from a Rack Fault Method Description Using Ladder Logic to Recover from a Fault You can Monitor Description Monitoring FaultsBlock-Transfers in Fault Routines Testing a Fault Routine For a description of the major faults S11, see Appendix B Monitoring Major/Minor Faults and Fault CodesInterpreting Major Faults Interpreting Minor Faults PLC-5/11, -5/20, 5/20E PLC-5/30 PLC-5/40, -5/40L, 5/40E Monitoring Status BitsPLC-5/60, -5/60L, -5/80, 5/80E Page Consider Using this Technique If You are Using Main Control ProgramsSelecting Main Control Programs MCP 16-2Using Main Control Programs If the MCP is a Following Occurs Configuring MCPsAn I/O update Using Main Control Programs This Field Do the Following Status File Monitoring MCPs Page Using a Selectable Timed Interrupt Using Selectable Timed InterruptsWriting STI Ladder Logic Block-Transfers in Selectable Timed Interrupts STIs 17-2Using Selectable Timed InterruptsControl R60 Length Position Mode STI Application Example Do the Following Status File Defining a Selectable Timed Interrupt Check for a non-zero value in S31 STI. If you disable the STI write a 0 to S31,Monitoring Selectable Timed Interrupts Controller uses the value in S30 to determine how often to 18-1 Using Processor Input InterruptsUsing a Processor Input Interrupt Using a processor input interrupt Two ways that you can use a PII program Mode DescriptionWriting PII Ladder Logic PII Application Examples C40.CU Counter C40 Preset 100 AccumBlock-Transfers in Processor Input Interrupts PIIs Output image bit remains set until the next count Design Considerations 18-4Using Processor Input Interrupts Defining a Controller Input Interrupt This PII Field Stores Address Monitoring Controller Input Interrupts Controller Specifications System Specifications Any Mix Memory and Channel SpecificationsController Maximum Maximum Maximum Number of I/O Cat. No Compatible PLC-5/80E 100 K3 Any mix or PLC-5/60 64 K2 Any mix orCompatible PLC-5/60L 64 K2 Any mix or Compatible Extended Local I/O PLC-5/80 100 K3 Any mix or Eeprom compatibility is related to Battery SpecificationsEeprom Compatibility Available Area Description 6System Specifications Publication 1785-UM012D-EN-P July Step in an SFC Processor Status FileS0 S2 This Word Stores Arithmetic flags This Word Stores S2Switch setting information2Processor Status File S3-10 S11 This Fault Code Indicates this Fault Fault Is This word stores the following fault codesS12 For instruction with missing NXT Error using SFR. This error occurs ifNon-recoverable. The fault You jumped to an invalid non-ladder file Publication 1785-UM012D-EN-P July Service Recoverable8Processor Status File S13-S24 RUN S26-S35 S36-S78 S79-S127 Using program control instructions Using This Chapter Program ScanMaximizing System Performance If I000/00 is Then the Rung is Effects of Different Input States on Logic Scan TimeEffects of False Logic versus True Logic on Logic Scan Time Other instructions may have a greater or lesser effect Effects of Different Instructions on Logic Scan Time Effects of Using Interrupts on Logic Scan Time For this Editing Operation This Type Times are Program Editing While in Remote Run ModeEffects of Housekeeping Time Online editing times for ladder programs are as follows Card Backplane + Card Remote I/O Processor Delay Scan Time Using Global Status Flag FilesCalculating Throughput Remote I/O Scan Time Input and Output Modules Delay6Maximizing System Performance 57.6 115.2 230.4 Communication RateNumber of Rack Entries Time Rate kbps Ms/Word Overhead ms Rate kbps Block-Transfers8Maximizing System Performance Optimizing Remote I/O Scan Time Calculating Worst-Case Remote I/O Scan TimeKbps Rack Words words No BTs Maximum scan time 10Maximizing System Performance Block-transfer to all modules = 1 3D + 3BT = 3D + 3BT Update ImageController Time Minimum time to complete Worst-case controller time is Example CalculationVariable Value Remote block-transfers Effect of Inserting Ladder Rungs at 56K-word LimitDown at the End of a Rungs Program File No impact 50 ms/Kwords JMP Using JMP/LBL InstructionsUsing FOR/NXT Instructions Instruction Consideration If You Want to Read About Instruction Set Quick ReferenceTiming and memory requirements for file program control, Relay Instructions TOF Timer InstructionsInstruction Description TON CTU Counter InstructionsRTO RES MEQ Compare InstructionsCTD LIM GRT CMPEQU GEQ ADD Compute InstructionsCPT ACS ATN ASNAVE COS CLRDIV SourceN70 MultiplyMUL 10Instruction Set Quick Reference SIN NEGSQR STD SRT Tangent To the power of Y XPYSubtract SUB Logical Instructions Convert to Degrees Conversion InstructionsDEG MVM Bit Modify and Move InstructionsRAD MOV FSC File InstructionsBTD FAL FLL File CopyCOP File Fill FBC Diagnostic InstructionsDDT FFL Shift Register InstructionsBSL BSR SQI Sequencer InstructionsLFL LFU Program Control Instructions AFI JSRSBR RET UIE SFREOT UID Block Transfer Instructions Process Control, Message Instructions Identifies the number of words in the transfer. a BTRRequeued BTW ABL Ascii InstructionsACB ARD AEXAIC AHL AWT ASCASR AWA Category Code Title Bit and Word InstructionsFloating Point True False LOG True FalseTOD FRD Category Code Title Time ∝s Words Integer Floating Point File, Program Control, and Ascii Instructions Category Code Title Time ∝s Words END ISA ACN ACIAHL ¡ Ascii AIC 38Instruction Set Quick Reference ASCII2 AWAWrite with append Write For this Switch Setting Switch Setting ReferenceController’s DH+ address Switch Controller SwitchesChannel 1A RS-232C Off RS-422A RS-423 To Specify Set SwitchesFront Processor 12 3 4 5 6 7 8 9 Side View Chassis Backplane 4Switch Setting ReferencePLC-5 Controller in the I/O Chassis Slot At bottom OFF open Not allowed Always Off Switch Last StateAS or -ASB Switches Addressing Pressed Off Slot At top on closed Pressed Power supply module Chassis Configuration Plug6Switch Setting Reference Set Y when you install Link Response First I/O Group NumberFirst I/O Group Number Rack Number see below see next Kbps Rack 8Switch Setting Reference First I/O Group Number Rack Number ALX Switch SW1Extended-Local I/O Adapter Module SW-2 Not Used Modules and any Addressing method ALX Configuration PlugIf You are Using But Not On the 2 upper pins Unexpected PLC-5 controller operation when TroubleshootingFor Information About Troubleshooting Go to Entering run mode Recommended Action General ProblemsIndicator Color Description PLC-5 Controller Comm Force Color Channel Mode Description Controller Communication Channel TroubleshootingDH+ Indicator Color Description Probable Cause Extended-Local I/O TroubleshootingEthernet Status Indicator Indicator Color Channel Mode Description Ethernet Transmit LED Remote I/O System Adapter module Indicators are still blinking, checkMode adapter to Troubleshooting F-7 Configuration Off Chassis fault Problem exists betweenProblem resulting from high noise.2 Line fault Off Module not Power supply fault Extended-Local I/O System Fault Rack AWT AWA ACB ABL AHL BTR Unexpected Operation when Entering Run ModeInstructions with Unique Prescan Operations This Executes These Actions During Prescan Instruction MSG Suggested Action 12Troubleshooting Publication 1785-UM012D-EN-P July Pin RS-232C RS-422A RS-423 Cable ReferenceShading indicates that the pin is reserved 2Cable Reference Serial Cable Pin Assignments Terminal 1784-CAK KE Series B 1770-CD Connecting Diagrams Terminal Cable #2 1770-KF2 1784-CP5 1784-CP7 4Cable Reference For Use this Cable See Programming Cable SpecificationsCable 1784-CAK Connects 1785-KE to WorkstationT Clear Shield Blue Pin 6Cable ReferenceShield Blue Controller Pin D-Shell Workstation 10 ft Position Terminal connector Blue Shield ClearTwinax Cable Pin D-Shell Female Controller Male Cable 1784-PCM5 Controller to Workstation using a 1784-PCMK8Cable Reference Pin D-Shell Workstation Female Controller DH+ 9-pin Ethernet cable Transceivers and transceiver cables Table below describes Allen-Bradley transceiversCatalog Number Description Cable Reference G-9 5810-TBS/A kit 5810-TC15/A5810-TAS/A kit 5810-TAM/A kit 1771KRF 9-21771SN Numerics1784CP2 9-21784CP3 Serial 10-6troubleshooting F-4 IP address 11-7usingUsing 6200 software 11-3using Bootp Extendedlocal I/O scanner configuration Data transfer 6-11blocktransfer Connections Ethernet G-9 Addressing 11-2advanced functions Token passing 9-13transmission rate 9-4troubleshooting F-4Power supplies 3-6discrete data transfer Program state 13-12extendedlocal I/O Gapping 4-12gateways Clearing 6-10,8-11global status bits 15-11,15-13 Mnemonic 4-18specifying Communication F-4Ethernet F-5,F-6Prescan timing F-10program control D-22 Interrupts C-3scheduling Multiple chassis status bits 15-11,15-13 Passwords 12-2performanceChassis dimensions 3-5power supply dimensions Optimizing 4-22program files 4-15protection E-4 Schemes 10-16techniques Mounting dimensions 3-6powerup routines 13-10,13-11,14-1Fault routines 15-6features Recover from rack fault 15-10terminal connections G-5 Serial devices 10-1setting switches Pointtopoint 10-3status Specifications A-1specifications A-1Program files 4-15temperature Performance 17-2program flow Influencing processor priorities Token passing 9-13transceivers G-9troubleshootingUser interrupts 13-14user mode 10-2,10-18 Input states C-2instructions C-3 Index Publication 1785-UM012D-EN-P July Other Comments CompletenessTechnical Accuracy Clarity Other Comments Business Reply MailPage Page Page New Product Satisfaction Return 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