16-2Using Main Control Programs, Mcp | Bradley Smoker PLC-5 guide

16-2Using Main Control Programs

Understanding How the Controller Interprets MCPs

The MCPs are scheduled to execute in the order in which you specify on the Crocessor Configuration screen. You can configure:

•an I/O image update and housekeeping after each MCP is completed (default parameter), or

•the controller to skip the I/O scan and run the next MCP

After the last MCP is completed, all MCPs are then repeated in the same order. Note that the watchdog setpoint covers one scan of all MCPs. The figure below shows how the controller interprets MCPs when an I/O image update is specified to occur after each MCP is completed.


	MCP A			MCP B

I/O	image update			I/O image update
				I/O image update
	and			and
	and			and
housekeeping				housekeeping

. . .

MCP P

I/O image update and

housekeeping

I/O pre-scan performed on transition from program to run mode

Important: Mode changes to program or remote program can occur between the execution of MCPs.

By disabling I/O scans between MCPs, you can gain 2-3 ms of program-scan time per disabled I/O scan. The controller updates your I/O when it reaches the next I/O scan command, which can be:

•an enabled I/O scan between MCPs, and/or

•the end of a pass through the entire MCP list.

The controller always performs an I/O scan after a pass through the MCP list.

The follwing figure shows how the controller skips I/O scans and moves to the next MCP.

MCP A	MCP C
MCP B	MCP D
I/O image update	I/O image update
and	and
housekeeping	housekeeping

MCP xx

MCP xx

I/O image update and

housekeeping

I/O pre-scan performed on transition from program to run mode

Important: Mode changes to program or remote program can occur between the execution of MCPs.

Publication 1785-UM012D-EN-P - July 2005

Image 254

Bradley Smoker PLC-5 user manual 16-2Using Main Control Programs, Mcp

Contents

Enhanced Ethernet PLC-5 Programmable Controllers Important User Information Is on Summary of ChangesAdditional Ethernet PLC-5 Controller Enhancement Publication 1785-UM012D-EN-P July Summary of Changes Table of Contents Controller-Resident I/O MemoryChapter Communicating with Chapter Communicating with Devices on a DH+ Link Chapter Communicating with a PLC-5 Adapter ChannelExtended-Local I/O Communicating with Devices on a Serial Link Protecting Your Programs Preparing Fault Routines Appendix a System Specifications Appendix B Processor Status File Appendix C Appendix D Appendix E Switch Setting Reference Appendix F Troubleshooting Appendix G Cable Reference Index Related PLC-5 Documentation Publication Title Publication Number Term Definition Controllers in this manual only Manual Overview This manual has three main sections Design Operate Maintain Preface Publication 1785-UM012D-EN-P July Extended-local I/O scanner Using This Chapter Lay Out the SystemFor Information About PLC-5/11, -5/20 and -5/26 controllers PLC-5/30 controllers Identifying Controller ComponentsFor the Front Panels No parity Keyswitch selects controller modeInstall memory module here Install battery here 4Understanding Your Programmable Controller Keyswitch selects controler modePLC-5/30 Controller Front Panell DF1 point-to-point One stop-bit 2400 bps Install memory module here PLC-5 family member designation Channel 2B status indicator lights green and redChannel 1B status indicator lights green and red PLC-5/20E Controller Front Panel External transceiver fuse Keyswitch selects controller modeConfigure this 3-pin port for 6Understanding Your Programmable Controller PLC-5/40E and -5/80E Controller Front Panels 8Understanding Your Programmable Controller Install battery here PLC-5 family member designationPLC-5/40L and -5/60L Controller Front Panels If You Want to This Capability Lets You MCP Scanner-mode PLC-5 controller PLC-5/401771-ASB Remote I/O Link Cable Belden At housekeeping Connect the controllers via the remote I/O link Controller transfers I/O data and status data using12Understanding Your Programmable Controller Publication 1785-UM012D-EN-P July Scanner 14Understanding Your Programmable Controller Selecting I/O Modules Using This ChapterSelecting and Placing I/O Selecting I/O modules Explanation Selecting I/O Module DensityChoose this Type Module Examples Selecting and Placing I/O Input Output 4Selecting and Placing I/O Publication 1785-UM012D-EN-P July Placing System Hardware Acceptable Range 102mm 51mm2 51mm Wiring Duct 102mm 153mm2Placing System Hardware Mount the I/O chassis horizontally Protecting Your Controller Troubleshooting is convenientPreventing Electrostatic Discharge RFI, we recommend a steel enclosure Route Conductors Laying Out Your Cable RacewayCategorize Conductors 4Placing System Hardware Side Chassis Dimensions Series BLaying Out Your Backpanel Spacing Chassis and External Power Supply Dimensions 6Placing System Hardware Ground Bus To Grounding Electrode System Recommended Grounding Configuration for Remote I/O SystemsEnclosure 8Placing System Hardware Publication 1785-UM012D-EN-P July Addressing I/O and Controller Memory Classification Term Relation to Controller Memory Addressing as It Relates to an I/O Terminal 2Addressing I/O and Controller Memory Choosing an Addressing Mode Termi 16-point ExampleInput Nals Controller memory Rack Point ExamplePoint input module Group Point input module Point output module Word # Example of Efficient I/O Image Table Use 6Addressing I/O and Controller Memory Addressing Block-Transfer Modules Addressing Mode GuidelinesAddressing Summary Use this table as a quick reference for addressing Slot Rack Racks 2 racks If Using this Slot Addressing Chassis Size ResultsAssigning Racks 8Addressing I/O and Controller Memory When assigning remote I/O rack numbers, use these guidelines Controller memory is divided into two basic areas Formatted address Understanding Data Storage Data-Table FilesSpecify the file in which the data is stored Data, you specify it with a formatted address 12Addressing I/O and Controller Memory Addressing File Types 1000words Words/1000 structures Structure14Addressing I/O and Controller Memory Accepts Any Understanding Program-File StorageValid Data Types/Values Are Program File Number of Words Used Valid formats for addressing data files are AddressingSpecifying I/O Image Addresses To Specify the Address of a Use these Parameters Where IsSpecifying Logical Addresses TON, TOF, RTO Specifying Indirect AddressesWord Level Example Bit Level Example Variable Explanation Source N710 N720 Specifying Indexed AddressesValue Base Address N115 N1115 AUTO1 Specifying Symbolic AddressesLS1 SW1 Optimizing Instruction Execution Time and Controller Memory 22Addressing I/O and Controller Memory Following examples illustrate these concepts Effectively Using I/O Memory Use Application Configuring the system for controller-resident I/O Introduction to PLC-5 Controller Scanning Program Scanning 2Communicating with Controller-Resident I/O Transferring Data to Controller-Resident I/O Transferring Discrete Data to Controller-Resident I/OTransferring Immediate I/O Requests Transferring Block-Transfer Data to Controller-Resident I/O 4Communicating with Controller-Resident I/O Communicating to a remote I/O node adapter Configuring a controller channel as a scannerCommunicating with Remote I/O Can Connect Category Product Catalog Number An example remote I/O system looks like this Introduction to Remote I/OBlock-transfer data with remote I/O devices Designing a Remote I/O Link Transmission rate. Configure all devices on a remote I/O Network using a daisy chain or trunk line/drop lineConfiguration Link to communicate at the same transmission rate Configuring a Controller Channel as a Scanner Catalog Number Series Specify the scan list Publication 1785-UM012D-EN-P July Specify Channel Configuration InformationDefine an I/O Status File This Field Define By Doing the Following Diagnostic fileScanner mode link 57.6, 115.2, and 230.4 kbps Cursor to the field, type an integer file number Do the Following Specify the Scan ListScan list includes the following For this Field Scan List Contains 10Communicating with Remote I/O ASB Adapter Modules, Do the Following See Communicating to a Remote I/O Node AdapterRemote I/O Scan and Program Scan Loops Appendix E Troubleshooting Remote I/O Communication Difficulties 12Communicating with Remote I/O Racks Interrupt from STI or Fault RoutineRemote I/O Scan Extended Local Adapter used in the remote I/O scan is the 1771-ASB Description Channel pairMinor fault bits set Block-Transfer Minor Fault BitsMinor Fault Description PLC-5 typeMaximum number of command blocks Block-transfer module 16Communicating with Remote I/OPacket includes data if it is a block-transfer write Transfer read Does the module respond? Block-Transfer Sequence with Status BitsYes Does this slot address Yes See Yes Sets the done .DN bit Sets the error .ER bit Yes18Communicating with Remote I/O Go to General Considerations Retries request once more before setting the .ER bitBlock-Transfer Programming Considerations For Controller-Resident Local Racks 20Communicating with Remote I/O Status Field Location Description Monitoring transmission retriesMonitoring Remote I/O Scanner Channels Field indicating the rack was globally reset FaultReset Rack Address Messages Tab Messages = SDA messages + SDN messages ErrorMessages sent with error Messages unable to receive N1547 24Communicating with Remote I/ODefined I/O status file Fault Bits Present Bits Fault Bits Not Used Reset and inhibit bits that correspond to each quarter When you use a ladder program or the software toInhibit and reset an I/O rack, you must set or clear Rack in a given chassis. Failure to set all the appropriate Monitoring remote I/O adapter channels Configuring communication to a PLC-5 adapter channelCommunicating with a PLC-5 Adapter Channel Monitoring the status of the supervisory controller 2Communicating with a PLC-5 Adapter Channel Configuring Communication to a PLC-5 Adapter ChannelInto for the supervisory controller Remote I/O Adapter Specify adapter settings Publication 1785-UM012D-EN-P JulyController Damage can result Default is rackStatus information Cursor to the field and select the desired rate 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 Enter the word number decimal of the source data Input destinationEnter the file number decimal of the source data Adapter’s input file 10Communicating with a PLC-5 Adapter Channel Programming Discrete Transfers Adapter ModeData to an Adapter Channel 0x7 N5115 Configure Block-Transfer Requests 12Communicating with a PLC-5 Adapter Channel Adapter Mode Configuration screenData Monitor screen BT100 Has a length of 64 words Must MatchBT000000 BT010000 BT011000 BT011001 BT011040 Examples of Block-Transfer Ladder Logic 14Communicating with a PLC-5 Adapter Channel BR0200 BWO200 PLC-5 adapter-mode processor is configured for rackCondition the use of BTR data with a data valid bit Data Not Valid Bit Locations of module 0 and 1 data 16Communicating with a PLC-5 Adapter ChannelWord For status Output File Input File Module Adapter channel status Monitoring the Status of the Adapter ChannelStatus bits sent to scanner When this Bits It Indicates Monitoring the Status of the Supervisory Controller Adapter Messages received with errorMonitoring Remote I/O Adapter Channels Page Scanner Monitoring extended-local I/O status Configuring the controller as an extended-local I/OFor Information About Go to PLC-5/40L and -5/60L processor You cannot connect two 2 m cables together. You would CablingForm a custom cable length. For example, if you have a Have to use the 5 m cable and have the extra 1 m as slack Processor-resident local I/O racks Numbered 4, 5, 10, 11, 12, 4Communicating with Extended-Local I/O PLC-5/40L and -5/60L I/O Scanning and UpdateTransferring Data Remote I/O Scan Extended Local I/O Data Exchange Image UpdateDiscrete Data Transfer PLC-5/40L and -5/60L Extended-Local I/O Scan Time Transferring Block Data 6Communicating with Extended-Local I/O This formula assumes Calculating Block-Transfer Completion TimeWhere Considerations for Extended-local Racks 8Communicating with Extended-Local I/O Want to get status information for that channel This Field Specifies Configure by Doing the FollowingScan list Channel I/O configuration List Remote I/O Scan List vs Extended-local I/O Scan List Or 1/2-SlotSlot Logical rack Logical racks 11/2 logical rack 10Communicating with Extended-Local I/O An asterisk * after a range indicates the last Valid rack entryAutomatically calculated based upon rack Monitoring Extended-Local I/O Status Switch settings on the adapters are set correctlyDisplay the new configuration when you save edits Screen Retry Word Channel retry WordRetry counts Word Multiples Etc EntryPage Selecting devices that you can connect Link design Using the global status flag fileSelecting Devices That You Can Connect Estimating DH+ link performance Application guidelines Link Design Serial port or a PLC-5 coprocessor, use channel 2 for Configuring the Channel for DH+ CommunicationYou must set switch assembly SW1 on the controller Better overall system performance Status information Words long Diagnostic file File containing the channel’sLink ID Local link where the channel Other used file. Unpredictable machine damage can result System creates an integer file 64 words long Using the Global Status Flag FilePass data Information previously in this file is lost Octal N107 Octal N1010 Octal N1015 Octal N1030 Files are updated during housekeeping6Communicating with Devices on a DH+ Link Status Field Words Description Monitoring messagesMonitoring DH+ Communication Channels Monitoring Data Sent with Acknowledgment Transmit confirm Need updates once per secondNoise or a cabling problem Transmit NAK full Monitoring Data Sent without Acknowledgment 10Communicating with Devices on a DH+ Link Monitoring General Status Started linear scan below for more information Noise or cabling problemsLinear scan failed Token retry Size and Number of Messages Sending Command Type Maximum Packet Station Size Data WordsNodes PLC-5 Completes the message transaction Station Message Destination14Communicating with Devices on a DH+ Link Internal Processing Time Number of Controllers Average DH+ Link Response Time Test Results16Communicating with Devices on a DH+ Link 50 W 100 W + 250 W X 500 W =Words Application Guidelines Number of ControllersPage Choosing Between This Is Normally Used When You MethodCommunicating with Devices on a Serial Link RS-423 System Mode Using ChannelUser Mode 10-2Communicating with Devices on a Serial Link DF1 Slave Mode Use this Mode ForDF1 Master Mode Point-to-Point Method Option Name Principal Benefits Follow these guidelines Polling Inactive Priority StationsChanging Modes Port Transmission DF1 slave 10-9 DF1 master 10-12 User mode Configuring ChannelConfigure Channel 0 for DF1 Point-to-Point If You Want to Use Serial Settings Option Settings DF1 Enqs Option is enabled Configure Channel 0 as a Slave StationSelect Enabled or Disabled To get status information for that channel Driver Error checking. CRC is more complete checkingSelect one of the following Station address RTS signal RTS send delay Amount of time that elapsesSignal and the beginning Message ACK timeout Amount of time you want Configure Channel 0 as a Master Station 10-12Communicating with Devices on a Serial Link Retried before being declared Enter a valid value RTS send delayOctal This time allows the modem to Polling Settings Transmit Message transmit Master messageIf you want the master station to Between Station Polls Remote stations Default size is 64 wordsDefault size is 18 words Priority poll file New remote station is polled Contains this InformationBeing polled, etc Word 2 through word 10-18Communicating with Devices on a Serial Link Configure Channel 0 for User Mode Ascii ProtocolRemote mode change File containing the channel’s 10-19 XON/XOFF If You Want To Select EnableDisable Remotely 10-22Communicating with Devices on a Serial Link Using the System Mode Status DisplayMonitoring Channel 0 Status Messages sent DCD recoverHigh Device Using the User Mode Ascii Status Display Modem Lines Communicating with Devices on an Ethernet Network Using This Chapter Media and CablingConfiguring channel 2 for Ethernet communication Assigning Your IP Address Manually Configuring ChannelNetwork Addressing 11-2Communicating with Devices on an Ethernet Network 11-3 Ethernet Channel 2 Configuration Fields With programming software if Bootp is enabled Broadcast Address Using Bootp to Enter Configuration InformationNetwork This field is required when you Controller should respond 11-6Communicating with Devices on an Ethernet Network Editing the Bootptab Configuration File Based on this configuration, the Bootptab file looks like 11-8Communicating with Devices on an Ethernet Network Advanced Ethernet communications characteristics Using Broadcast AddressingIf Bootp is enabled, you can’t change any Broadcast addressing 11-9 Subnet masks and gateways 11-11 Form C.dWhere a, b, c, d are between 0-255 decimalIf you change the default and need to reset it, type 11-10Communicating with Devices on an Ethernet Network If You are Then See Using Subnet Masks and GatewaysUsing Bootp to configure Be sure Bootp is enabled 11-13 11-12 Enter an address of the following form Subnet Mask Controller’s subnet maskSubnets Local subnet Server 130.151.194.xxx Ethernet TCP/IP network Personal computer WindowsOr HP 9000 or VAX computer 130.151.132.1 Bootptab files that correspond to this example looks like 11-14Communicating with Devices on an Ethernet Network Using Domain Name Service Using the Embedded Web Server 11-16Communicating with Devices on an Ethernet Network Diagnostic Information 11-18Communicating with Devices on an Ethernet Network This Counter Totals Session Table Connections This IndicatesApplication Memory 11-20Communicating with Devices on an Ethernet Network 11-21 Generating User Provided Web Pages 11-22Communicating with Devices on an Ethernet Network Output Timer Status Counter Control 11-24Communicating with Devices on an Ethernet Network Input image word is I0 is b!ABDTR-I0/bTime values in T40 are!ABDTR-T40 BCD Importing User Page Files to the PLC-5 Controller 11-26Communicating with Devices on an Ethernet Network 11-27 11-28Communicating with Devices on an Ethernet Network 11-29 Following examples use this system configuration Multihop Examples 11-31 11-32Communicating with Devices on an Ethernet Network Communicating with ControlLogix DevicesComparing Multihop and Non-Multihop Messages Over Ethernet Code Hexadecimal Description Interpreting Error CodesController sets the .ER bit and enters an error code Displayed on the data monitor screen Active screen Interpreting Ethernet Status DataF00A 11-34Communicating with Devices on an Ethernet Network Monitoring general Ethernet status Status Field Bytes Displays the Number 11-36Communicating with Devices on an Ethernet Network Monitoring Ethernet commandsMonitoring Ethernet replies Personal Computer Ethernet PLC-5 Performance ConsiderationsPerformance Host to Ethernet PLC-5 Controller PLC-5 Controller Typed Write Packet Size 11-38Communicating with Devices on an Ethernet Network 12-4 Using protected controllers 12-6Protecting Your Programs File Assigning a privilege class to a node 12-4 Node privileges override the default privilege class Channel Structure Defining Privilege ClassesWill be appropriate for a particular application 12-4Protecting Your Programs Assigning a Privilege Class to a NodeAssigning a Privilege Class to a Channel or Offline File 12-5 Page Forcing Inputs and Outputs Programming ConsiderationsForcing 13-11 13-2Programming Considerations Extended ForcingForcing SFC Transitions Non-block-transfer data. All non-block-transfer data That you include in the extended force configurationDo not use BTR data tables files to store Table as read data will be forced to zero during Force Privileges Enabled 003 ms Disabled 0015 msIncreased Program Scan Time 13-4Programming Considerations With the Programming Software Using Protected ControllersSetting Up and Using Extended Forcing Package Select all of data file N11 Select Which Group of Data You Want to Force13-6Programming Considerations BTR #2 and ending at the end of BTR #4 Forces Must be of Type B, A, N, or D Radix Force Screen Display Enable or Disable the ForcesUsing Extended Forcing with Time-Critical Applications Binary Enable the BTW OTL Using Special Programming Routines 13-10Programming Considerations Deciding When to Use Special Routines Priority Scheduling for Interrupts and MCPs Program Execution States 13-12Programming Considerations Program would be executing if it were of a higher priority An MCP, STI, PII Does the program fault?Rescheduling Operation Program can be 13-14Programming ConsiderationsI012 Interrupted Power-up routines Fault routines Defining and Programming Interrupt RoutinesPage If S26/1 is After power loss, the controller Preparing Power-Up RoutinesSetting Power-Up Protection Set Fault or power-up condition Defining a Controller Power-Up ProcedurePortion of the fault routine associated with a particular Allowing or Inhibiting Startup Use this Bit 15..............0Page Understanding the Fault Routine Concept Preparing Fault RoutinesResponses to a Major Fault For Information About See General FaultsUnderstanding It Sets Fault in a Remote I/O Chassis Preparing Fault Routines Here are two programming methods you can use 15-4Preparing Fault RoutinesRemote inputs inactive Inputs 15-5 To fault mode without completing the fault routine Programming a Fault RoutineAvoiding Multiple Watchdog Faults If You Encounter Then Fault. Be sure to examine the fault bit and correct Setting an AlarmClearing a Major Fault Cause of the fault before clearing it Then faults Example of Comparing a Major Fault Code with a ReferenceIf the Fault Routine Then the Controller 15-8Preparing Fault Routines Changing the Fault Routine from Ladder Logic Using Ladder Logic to Recover from a Fault Ways to Recover from a Rack Fault Method Description Testing a Fault Routine Monitoring FaultsBlock-Transfers in Fault Routines You can Monitor Description Interpreting Minor Faults Monitoring Major/Minor Faults and Fault CodesInterpreting Major Faults For a description of the major faults S11, see Appendix B PLC-5/60, -5/60L, -5/80, 5/80E Monitoring Status BitsPLC-5/11, -5/20, 5/20E PLC-5/30 PLC-5/40, -5/40L, 5/40E Page Selecting Main Control Programs Using Main Control ProgramsConsider Using this Technique If You are 16-2Using Main Control Programs MCP Using Main Control Programs Configuring MCPsAn I/O update If the MCP is a Following Occurs This Field Do the Following Status File Monitoring MCPs Page Writing STI Ladder Logic Using Selectable Timed InterruptsUsing a Selectable Timed Interrupt STI Application Example 17-2Using Selectable Timed InterruptsControl R60 Length Position Mode Block-Transfers in Selectable Timed Interrupts STIs Defining a Selectable Timed Interrupt Do the Following Status File Controller uses the value in S30 to determine how often to STI. If you disable the STI write a 0 to S31,Monitoring Selectable Timed Interrupts Check for a non-zero value in S31 Using a processor input interrupt Using Processor Input InterruptsUsing a Processor Input Interrupt 18-1 PII Application Examples Mode DescriptionWriting PII Ladder Logic Two ways that you can use a PII program Output image bit remains set until the next count Counter C40 Preset 100 AccumBlock-Transfers in Processor Input Interrupts PIIs C40.CU 18-4Using Processor Input Interrupts Design Considerations Defining a Controller Input Interrupt Monitoring Controller Input Interrupts This PII Field Stores Address System Specifications Controller Specifications Maximum Maximum Number of I/O Cat. No Memory and Channel SpecificationsController Maximum Any Mix Compatible Extended Local I/O PLC-5/80 100 K3 Any mix or PLC-5/60 64 K2 Any mix orCompatible PLC-5/60L 64 K2 Any mix or Compatible PLC-5/80E 100 K3 Any mix or Available Battery SpecificationsEeprom Compatibility Eeprom compatibility is related to Area Description 6System Specifications Publication 1785-UM012D-EN-P July This Word Stores Arithmetic flags Processor Status FileS0 S2 Step in an SFC 2Processor Status File S2Switch setting informationThis Word Stores S3-10 S11 S12 This word stores the following fault codesThis Fault Code Indicates this Fault Fault Is You jumped to an invalid non-ladder file Error using SFR. This error occurs ifNon-recoverable. The fault For instruction with missing NXT Publication 1785-UM012D-EN-P July 8Processor Status File RecoverableService S13-S24 S26-S35 RUN S36-S78 S79-S127 Maximizing System Performance Using This Chapter Program ScanUsing program control instructions Other instructions may have a greater or lesser effect Effects of Different Input States on Logic Scan TimeEffects of False Logic versus True Logic on Logic Scan Time If I000/00 is Then the Rung is Effects of Using Interrupts on Logic Scan Time Effects of Different Instructions on Logic Scan Time Online editing times for ladder programs are as follows Editing While in Remote Run ModeEffects of Housekeeping Time For this Editing Operation This Type Times are Program Calculating Throughput Using Global Status Flag FilesCard Backplane + Card Remote I/O Processor Delay Scan Time 6Maximizing System Performance Input and Output Modules DelayRemote I/O Scan Time Time Rate kbps Communication RateNumber of Rack Entries 57.6 115.2 230.4 8Maximizing System Performance Block-TransfersMs/Word Overhead ms Rate kbps Kbps Rack Words words No BTs Calculating Worst-Case Remote I/O Scan TimeOptimizing Remote I/O Scan Time 10Maximizing System Performance Maximum scan time Minimum time to complete Update ImageController Time Block-transfer to all modules = 1 3D + 3BT = 3D + 3BT Variable Value Example CalculationWorst-case controller time is No impact 50 ms/Kwords Effect of Inserting Ladder Rungs at 56K-word LimitDown at the End of a Rungs Program File Remote block-transfers Instruction Consideration Using JMP/LBL InstructionsUsing FOR/NXT Instructions JMP Timing and memory requirements for file program control, Instruction Set Quick ReferenceIf You Want to Read About Relay Instructions TON Timer InstructionsInstruction Description TOF RES Counter InstructionsRTO CTU LIM Compare InstructionsCTD MEQ GEQ CMPEQU GRT ACS Compute InstructionsCPT ADD AVE ASNATN DIV CLRCOS 10Instruction Set Quick Reference MultiplyMUL SourceN70 SQR NEGSIN SRT STD SUB To the power of Y XPYSubtract Tangent Logical Instructions DEG Conversion InstructionsConvert to Degrees MOV Bit Modify and Move InstructionsRAD MVM FAL File InstructionsBTD FSC File Fill File CopyCOP FLL DDT Diagnostic InstructionsFBC BSR Shift Register InstructionsBSL FFL LFU Sequencer InstructionsLFL SQI Program Control Instructions RET JSRSBR AFI UID SFREOT UIE Process Control, Message Instructions Block Transfer Instructions BTW BTRRequeued Identifies the number of words in the transfer. a ACB Ascii InstructionsABL AHL AEXAIC ARD AWA ASCASR AWT Floating Point True False Bit and Word InstructionsCategory Code Title FRD True FalseTOD LOG File, Program Control, and Ascii Instructions Category Code Title Time ∝s Words Integer Floating Point Category Code Title Time ∝s Words END ISA AHL ¡ ACIACN Ascii AIC Write ASCII2 AWAWrite with append 38Instruction Set Quick Reference Controller’s DH+ address Switch Setting ReferenceFor this Switch Setting Channel 1A Controller SwitchesSwitch Front Processor 12 3 4 5 6 7 8 9 Side View To Specify Set SwitchesRS-232C Off RS-422A RS-423 PLC-5 Controller in the I/O Chassis 4Switch Setting ReferenceChassis Backplane Off Slot At top on closed Pressed Always Off Switch Last StateAS or -ASB Switches Addressing Pressed Slot At bottom OFF open Not allowed Set Y when you install Chassis Configuration Plug6Switch Setting Reference Power supply module Kbps First I/O Group NumberFirst I/O Group Number Rack Number see below see next Link Response 8Switch Setting Reference Rack SW-2 Not Used ALX Switch SW1Extended-Local I/O Adapter Module First I/O Group Number Rack Number On the 2 upper pins ALX Configuration PlugIf You are Using But Not Modules and any Addressing method Entering run mode TroubleshootingFor Information About Troubleshooting Go to Unexpected PLC-5 controller operation when PLC-5 Controller General ProblemsIndicator Color Description Recommended Action Force Comm DH+ Controller Communication Channel TroubleshootingColor Channel Mode Description Indicator Color Channel Mode Description Extended-Local I/O TroubleshootingEthernet Status Indicator Indicator Color Description Probable Cause Remote I/O System Ethernet Transmit LED Troubleshooting F-7 Indicators are still blinking, checkMode adapter to Adapter module Line fault Off Module not Power supply fault Off Chassis fault Problem exists betweenProblem resulting from high noise.2 Configuration Fault Rack Extended-Local I/O System This Executes These Actions During Prescan Instruction Unexpected Operation when Entering Run ModeInstructions with Unique Prescan Operations AWT AWA ACB ABL AHL BTR Suggested Action MSG 12Troubleshooting Publication 1785-UM012D-EN-P July Shading indicates that the pin is reserved Cable ReferencePin RS-232C RS-422A RS-423 Serial Cable Pin Assignments 2Cable Reference Connecting Diagrams Terminal 1784-CAK KE Series B 1770-CD 4Cable Reference Terminal Cable #2 1770-KF2 1784-CP5 1784-CP7 Cable 1784-CAK Connects 1785-KE to WorkstationT Programming Cable SpecificationsFor Use this Cable See Blue Controller Pin D-Shell Workstation 6Cable ReferenceShield Clear Shield Blue Pin Pin D-Shell Female Position Terminal connector Blue Shield ClearTwinax Cable 10 ft Pin D-Shell Workstation Female Controller DH+ 9-pin Cable 1784-PCM5 Controller to Workstation using a 1784-PCMK8Cable Reference Controller Male Cable Reference G-9 Table below describes Allen-Bradley transceiversCatalog Number Description Ethernet cable Transceivers and transceiver cables 5810-TAM/A kit 5810-TC15/A5810-TAS/A kit 5810-TBS/A kit 1784CP2 9-21784CP3 Numerics1771KRF 9-21771SN Extendedlocal I/O scanner configuration IP address 11-7usingUsing 6200 software 11-3using Bootp Serial 10-6troubleshooting F-4 Connections Ethernet G-9 Data transfer 6-11blocktransfer Program state 13-12extendedlocal I/O Token passing 9-13transmission rate 9-4troubleshooting F-4Power supplies 3-6discrete data transfer Addressing 11-2advanced functions Clearing 6-10,8-11global status bits 15-11,15-13 Gapping 4-12gateways Interrupts C-3scheduling Communication F-4Ethernet F-5,F-6Prescan timing F-10program control D-22 Mnemonic 4-18specifying Optimizing 4-22program files 4-15protection E-4 Passwords 12-2performanceChassis dimensions 3-5power supply dimensions Multiple chassis status bits 15-11,15-13 Recover from rack fault 15-10terminal connections G-5 Mounting dimensions 3-6powerup routines 13-10,13-11,14-1Fault routines 15-6features Schemes 10-16techniques Serial devices 10-1setting switches Performance 17-2program flow Specifications A-1specifications A-1Program files 4-15temperature Pointtopoint 10-3status Input states C-2instructions C-3 Token passing 9-13transceivers G-9troubleshootingUser interrupts 13-14user mode 10-2,10-18 Influencing processor priorities Index Publication 1785-UM012D-EN-P July Clarity CompletenessTechnical Accuracy Other Comments Business Reply Mail Other CommentsPage Page Page Rockwell Automation Support Installation 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