GE GFK-0804B specification

Contents

Appendix A	Using Directories	A-1
Appendix B Micro PLC Protocol		B-1
	Communications Files	B-2
	Communications Memory Types and Addresses	B-3
	Communications Parameters	B-3
	Communications Protocol	B-4
	Data Format	B-4
	Communications Functions	B-8
Appendix C	RTU Protocol	C-1
	Introduction	C-1
	Message Types	C-2
	Transmission Sequence	C-2
	Message Fields	C-3
	Character Format	C-4
	Message Termination	C-4
	Timeout Usage	C-4
	Cyclic Redundancy Check (CRC)	C-5
	RTU Message Length	C-8
	Message Descriptions	C-9
	Message (01): Read Output Table	C-9
	Message (02): Read Input Table	C-10
	Message (03): Read Registers	C-11
	Message (04): Read Analog Inputs	C-12
	Message (05): Force Single Output	C-13
	Message (06): Preset Single Register	C-14
	Message (07): Read Exception Status	C-15
	Message (16): Preset Multiple Registers	C-16
	Message (17): Report Device Type	C-17
	Communication Errors	C-18
	Invalid Query Message	C-18
	Serial Link Timeout	C-19
	Invalid Transactions	C-19
Appendix D Communications Using Windows DDE		D-1
	Features of the Micro PLC DDE Driver Software	D-2
	Simple Demonstration using Microsoft Word	D-3
	Demonstration using Microsoft Excel	D-3
	Viewing PLC Data in Windows	D-4
	Viewing PLC Data in another DDE-compliant Application	D-5
	Writing Values to the PLC from another Application	D-5
	Ordering Information	D-5
GFK-0804B	Micro PLC Programmer's Guide - April 1994	vii

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GE GFK-0804B manual Appendix a Using Directories Appendix B Micro PLC Protocol

Contents

GE Fanuc Automation GFL±002 Related Publications Content of this Manual Technical Assistance PrefaceWe Welcome Your Comments and Suggestions Contents Math Functions Appendix a Using Directories Appendix B Micro PLC Protocol Appendix E Data Acquisition, Logging, and Display Program Chapter Programming for the Micro PLC Device Designation Programming Basics PLC Programs Power Flow in a Program Micro PLC Instruction Set Programming with the Programming Software Programming Devices and FormatsProgramming on a Hand-held Programmer Non-retentive and Retentive Registers Memory Types and AddressesConstants and Register Values in a Program Memor y Map Hold Output Coil C1021 Special CoilsSec Clock C1018 Start-up Scan Coil C1019 Maximum Values Programming for an Analog Expander UnitAnalog Scaling Analog References Example #1 Programming Examples Chapter Programming with the Programming Software Programming Operations Using the Programming Functions Programming Functions Creating a Program Rung Running the Programming Software from a Hard Disk Running the Programming SoftwareRunning the Programming Software Directly from a Diskette Editing Basics Horizontal and Vertical Lines in a Rung Element Labels and Rung Labels Deleting a Rung Element Editing a Completed RungSelecting a Rung to Edit Editing a Rung Element Adding a Program Function to a Rung Adding a Contact to a Rung Replacing a Rung Element with a Horizontal Line Replacing a Rung Element with a Similar Element Replacing a Rung Element with a Dissimilar Element Moving Rungs Deleting Rungs Copying Rungs Searching for a Rung or Program Element Chapter Programming with a Hand-held Programmer Program Transfer Program Listing Hand-Held Programmer Key Operation and Displays Entering Program Logic Inserting a Rung Element Deleting a Rung Element, Rung or Program In Memory Deleting a Rung Element Searching Programming Examples Using the HHP Ladder Diagram Chapter Micro PLC Instruction Set Instruction Set Summary Operation Ladder Symbol Description Micro PLC Instruction Set General Programming Software Instructions for Contacts Contacts Programming Normally-Open Contact at the Start of a Rung Normally- Open ContactProgramming Software Instructions Examples and HHP Instructions Programming a Normally-Open Contact in Parallel Programming a Normally-Open Contact in Series Programming Normally-Closed Contact at the Start of a Rung Normally- Closed Contact Programming a Normally-Closed Contact in Parallel Programming a Normally-Closed Contact in Series Example and HHP Instructions Positive Transition Contact Example and HHP Instructions Negative Transition Contact Coils Using Coil PairsGeneral Programming Software Instructions for Coils Output Coil Reset Set/Reset Coil PairExample and HHP Instructions Set End Master Control Relay/End Coil Pair Skip Skip/End Coil Pair Use the Accept F10 key to add the rung to the program TimersProgramming Software Instructions for Timers Enter the other logic required by the Timer On Timer Off Timer Programming Software Instructions for Counters CountersEnter the other logic required by the Counter Up Counter Down Counter Addition Math FunctionsAddition ADD Maximum Total R1+R2 ! R3 R1+ 1! R4 1st number 2nd number Total in register Subtraction SUB R1± 5! R2 R3±R4 ! R5 Examples Multiplication MUL R1 x R2! R3 Whole # Remainder Division DIV Divide Using Division and Multiplication Functions Together Select Move F5 from the Math/Move function keys Move FunctionsMove Move Ladder Diagram Hand-held Programmer R001 0002 R004 R010 R020 R100 Block Move R1E 5! R10 O9E 8! O17 Specifying a Location in the Pointer Register Indirect MoveSelect I±Move F7 from the Math/Move function keys Start Move Greater Compare FunctionsExamples Equal Press Enter to add the function to the program Not Logic Operations Word Inclusive or IOR Exclusive or XOR Entering the Number of Positions to Shift Shift Register Right Shift Register Left Not Loading and Saving Files Appendix Using Directories MICRO.CFG File Using the Change Directory FunctionHints for a Basic Application CMD\MICRO\PALLET CMD\MICRO\RIVETER CMD\MICRO\TRANSFER Hints for an Advanced Application Appendix Micro PLC Protocol Communications Files Special Registers Communications Memory Types and AddressesCommunications Parameters Memory Addresses Reply Communications ProtocolData Format Read Discretes Write Analogs Read AnalogsRead Program Memory Write Discretes Read Status Write Program MemoryStatus Word Stop Program Error ReplyError codes Start Program Microsoft C Large Model Compile w/ -AL Option Communications Functions Microsoft C Small Model Compile w/ -AS Option Turbo C Large Model Compile w/ -ml Option Turbo C Small Model Compile w/ -ms Option IBM Compiler Basic #include dos.h #include stdio.h #include ªMCROCOMM.Cº Sample Programs Sample Basic Program Introduction Appendix RTU Protocol Broadcast Message TypesTransmission Sequence Query Function Code Error Check FieldMessage Fields Station Address Character Format Timeout UsageMessage Termination Generating Polynomial Cyclic Redundancy Check CRC Software Calculation of CRC±16 Hardware Implementation of CRC-16 Address Function CRC±16 Example CRC±16 Calculation Response Message Length Less CRC Code RTU Message LengthFunction Code And Name Query or Broadcast Message Length Less CRC Code Message 01 Read Output Table Format Message DescriptionsResponse Message 02 Read Input Table Format Message 03 Read Registers Format Message 04 Read Analog Inputs Format Message 05 Force Single Output Format Message 06 Preset Single Register Format Message 07 Read Exception Status Format Message 16 Preset Multiple Registers Format Message 17 Report Device Type Format Invalid Query Message Communication ErrorsInvalid Function Code Error Response Invalid Address Error Response Invalid Transactions Invalid Data Value Error ResponseQuery Processing Failure Error Response Serial Link Timeout Limits of the Demonstration Software Appendix Communications Using Windows DDE Features of the Micro PLC DDE Driver Software Demonstration using Microsoft Excel Simple Demonstration using Microsoft Word Viewing PLC Data in Windows Writing Values to the PLC from another Application Viewing PLC Data in another DDE-compliant ApplicationOrdering Information Using the Display Software with Micro PLC Net Features Overview Appendix E Data Acquisition, Logging, and Display Program Equipment Required Invoking Display Startup Auto Polling Operation Display Software Menus Changing the Screen Colors Editing Summary Data Format Manual Mode Reading One Word of Input, Output, or Register Data Entering Manual ModeReading Multiple Bytes of Input, Output, or Register Data Creating a Bank of Registers for Downloading Data 15,T,1 Writing Data to the Registers Naming an Auto-polling Screen File Creating or Editing Autopolling ScreensSpecifying an Existing File to Edit Creating an Auto-polling Screen Formatting Strings for Auto-polling Screens Setup for Data Logging During Auto-PollingText for Auto-polling Screens Format Data Display String Format ± &XYYYYYZNExample Hilimit Data Limits Format ± &L,X,YYYYY,LowLimit,Hilimit #,SC,BC,LT Colors/logtime setup format ± &#,SC,BC,LT Creating or Editing System Messages System Messages Specifying the Device to Control System Message Display Executing an Auto-polling Screen Auto-Polling During System Operation Forcing an Output Changing the DisplayPrinting the Screen Writing a Value to a Register Renaming the .LOG File to Prevent Overwriting Data Data LoggingHow Data Logging Works .LOG File Target ID Format of Logged DataTime Stamp Year, Month, Day, Hour, Minutes, Seconds Data Type Table, Reference, Data Value Error Writing to Device COM1 Error Messages During Operation Appendix ProgrammingApplications Application #1 Flip / Flop Toggle Operation Application #2 Power Up One Shot Start±up Protection Application #3 Cascading Counters Application #4 Industrial ªStarting Circuitº +±± ±±+±±/±±+±±±±±±±±±±+±±±±±±±+±±±±±±±+±± ±± Index Index-2 Index-3