Example Ladder Logic | GE GFK-0787B instruction

7

an I/O Fault Reset be performed when any of the GMR CPUs are initialized, which will cause any current I/O fault information to be re±reported.

If manual output controls are used in a GMR system and the appropriate GMR Autotest inhibit inputs are used to block faults created by the manual controls, any standard Genius type fault (open, overload, short, etc.) is also blocked during the time the inhibit input is on. It is therefore recommended that after the inhibit input is turned off, an I/O fault reset be performed, which will cause any current I/O fault information to be re±reported.

Example Ladder Logic:

The following example shows some typical program startup logic. This is only an example. You will probably need to modify the logic shown for your application.

[	START OF LD PROGRAM EXAMPLE				]	(*	*)

[	VARIABLE DECLARATIONS				]	(*	*)

[	PROGRAM BLOCK DECLARATIONS				]	(*	*)

[	START OF PROGRAM LOGIC				]

<< RUNG		5 >>

INHIBIT
ÐÐ ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÈÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ>>							END

<< RUNG		6 >>


Ð	CALL	IN_CO	Ð

<< RUNG		7 >>


Ð	CALL	FILTER	Ð

<< RUNG		8 >>			These Program Blocks represent logic
					These Program Blocks represent logic
Ð	CALL	HR_344	Ð		routines that are appropriate for the
					application.

<< RUNG		9 >>

Ð	CALL	ANNUN	Ð


<< RUNG		10 >>


Ð	CALL	DIAGNO	Ð


<< RUNG		11 >>

MISCOMP		SYSFLT				CONTINU

ÐÐ/ÐÐÐÐ/ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÈÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ( )ÐÐÐ

MAN_COM
ÐÐ/ÐÐÐÐÐÐÐÐÐÐ
	In rung 11, the logic tests for Miscompare and System
	In rung 11, the logic tests for Miscompare and System
	Fault. If both are not 1, initialization continues.

An optional parallel input (MAN_COM in this example) can be used to allow a ªmanual continueº input to be supplied by an operator.

7-18	GeniustModular Redundancy Flexible Triple Modular Redundant (TMR) System	GFK-0787B
	User's Manual ± March 1995

Image 161

GE GFK-0787B Example Ladder Logic, These Program Blocks represent logic, Routines that are appropriate for Application

Contents

GE Fanuc Automation GFL±002 Preface Related Publications Preface Contents Chapter Configuration Appendix a TÜV Certification Appendix B Maintenance Override Chapter Introduction Components of a GMR System Inter-processor Communications Series 90-70 PLCs Additional Bus Controllers for Communications Busses and Bus Controllers Operation Overview PLC Subsystem Voting on Input Data Input Subsystem Automatic System Test PLC Subsystem Providing Output DataOutput Subsystem Discrete Blocks Genius I/O BlocksAnalog, RTD, and Thermocouple Blocks Block Summary Number of Non-GMR I/O Available for the 788 CPU Number of I/O Points in a GMR SystemNumber of Non-GMR I/O Available for the 789 CPU 798 GMR Configuration and Programming Basic Steps of Configuration and Programming Chapter Input Subsystem Overview One sensor to one Genius input GMR Input Groups Inputs from non-GMR I/O blocks Non-Voted I/O in the Input SubsystemInputs from single-block simplex GMR input groups Types of Blocks in the Input Subsystem Discrete InputsDiscrete Input Processing Discrepancy Reporting for GMR Inputs Calculating Voltage Drops on Tristate Inputs Input Autotest for GMR Inputs Normally-closed Inputs Line Monitoring for Discrete InputsNormally-open Inputs Input Filter Time Manual Input Controls Voted Analog Inputs Analog InputsNumber of Input Sensors per Voted Channel Analog Voting Adaptation Non-GMR Analog Blocks Analog Discrepancy ReportingNon-Voted Analog Inputs in GMR Input Groups Chapter Output Subsystem Types of Blocks in the Output Subsystem Output Voting Duplex Default for OutputsGMR Output Handling Results of Block Group Voting with Three PLCs Online PLC Logon Control Output Fault Reporting Output Load Sharing Block Output Groups Bus Redundancy in a 4-Block Output Group Electrical Characteristics of Sink and Source BlocksOperation of a 4-Block Output Group Manual Output Controls and Diagnostics Redundancy Modes for Output Blocks GMR Mode Hot Standby Mode in a GMR System Hot Standby ModeBasic Hot Standby Mode Operation Chapter PLC Subsystem All GMR bus controllers at serial bus address System Startup Online Changes Data Initialization PLC Operation CPU Sweep in a GMR System Important Note Estimating CPU Sweep TimeSweep Time Contribution of Genius I/O and GBCs Discrete Inputs Input ProcessingDiscrepancies Discrete Input Voting Voting with Three Discrete Inputs Voting with Two Discrete Inputs Voting for One Discrete Input Analog Inputs Analog Input Voting Voting for Three Analog Inputs Voting for Two Analog Inputs Voting for One Analog Input Discrete Outputs Output Processing Synchronous or Asynchronous Input Autotest and I/O Shutdown Shutdown M12244 ± Iosd Any I/O Shutdown Timer Activated Output Faults that Cause I/O ShutdownM12265 ± Sdcan Cancel I/O Shutdown Programming for I/O Shutdown Hours Shut Down Prevention Shut Down Recovery Global Data Redundancy Entering, Clearing, or Setting Global DataCommunications Between PLCs Programming for Diagnostics Chapter Diagnostics Output Diagnostics Diagnostics in a GMR SystemInput Diagnostics Setting Up Other Blocks to Send Multiple Fault Reports Setting Up Blocks to Report Genius FaultsCPU Redundancy Mode Configuration Block Type Summary Table Autotest Sequence GMR Autotesting Discrete Input Autotest Configuration Required for Discrete Input AutotestSetup for Input Autotest Circuit Fail Mask Operation of the Input Autotest Discrete Output Autotest Operation of the Discrete Output Autotest Block a Pulse-tested Pulse Test Operation Discrete Input Discrepancy Reporting GMR Discrepancy ReportingInput Data Voted Discrepancy Inputs Discrete Output Discrepancy Reporting with Dynamic Outputs Discrete Output Discrepancy ReportingHow Output Discrepancy Checking is Performed Analog Input Discrepancy Reporting Input Line Fault Detection in a GMR Application Clearing the Fault Tables in a GMR System PLC and I/O Fault Tables in a GMR System Reporting of No-Load Faults on 4-Block Output Groups Fault Table Messages for GMR Fault Type for Output Autotest Fault Description Code Hex MeaningFault Specific Data Message PLC Fault Table Messages for GMRCode Code Code 10903 Code Manual Output Controls and Diagnostics Monitoring Manual Output Controls Discrete Input Fault Contacts for GMR Fault, No Fault, and Alarm Contacts Contact References Associated with an Output Discrete Output Fault Contacts for GMR ShortCircuitfault Overtemperaturefault Overloadfault Alarm Contacts Analog Fault and Alarm Contacts for GMRFault Contacts for Analog Inputs Fault Contacts for Analog Outputs Chapter Configuration Basic Steps of Configuration Configuration Overview For Information to be copied set only Configuration to yes GMR Configuration Software Revision and Checksum Using the GMR Configuration Software Getting Started Installing the Configuration Software Using a Mouse Mouse and Keyboard Guide for the Configuration Software Configuration GMR Configuration Summary Insert the first GBC bus controller group Creating/Selecting a File Opening a Previously-Saved Configuration File Saving a Configuration File Changing to Another Directory Closing a Configuration File without Saving It Entering a System Description Starting a New ConfigurationClosing and Deleting the System Configuration File When you select System, the following menu appears GMR Configuration Selections Shutdown CPU ConfigurationSimplex Period Test Interval Input Discrepancy Filter Limits Global Data Initialization Data+ %R data needed for the application Spare GBC1 GBC2 Initialize Data Parame Comment Ters M12234 Fault ActionsM12232 Write Access Adding Bus Controllers and I/O Modules Genius Bus Controller Group Configuration Exiting the Window Exiting a Block Group Window Configuring the Input Subsystem for a Bus Controller GroupSelect To Configure SBA Start %I Auto Test GFK-0787B Duplex State GFK-0787B Analog I/O Group Configuration Vote Adaptation Vote Adapt Mode Default State Analog Discrepancy Thresholds and Limits Start %Q Configuring the Output Subsystem for a Bus Controller Group GFK-0787B Options Bus C inputs Reserved inputs Start Ref Configuration References are 0001 to Creating the GMR10 Output File CONFIG4 Printing the GMR Configuration Configuring Bus Controllers Completing the Logicmaster 90 Configuration Creating and Copying the PLC Configuration Logicmaster Configuration Summary GFK-0787B Configuring GMR Bus Controllers and I/O Blocks Copying Configurations Configuring Genius I/O BlocksSetting Up Blocks for Fault Reporting Editing the Reference Addresses Feature Circuit or Factory Selections Block Setting Configuring 16-Circuit and 32-Circuit Discrete DC BlocksDevice Serial bus Block I/O Type Baud Rate Pulse Test Input Filter Time Circuit I/O Type Report Faults Configuration Duplex Output Default State Setting Block Duplex Default Results of Block Voting with Only Two PLCs Online Duplex Voted Output Default State Setting Block Chapter Programming Overview Estimating Memory Usage Program Instruction Set for GMREstimating Bus Scan Time Use of Do I/O and Suspend I/O References Reserved For Memor y Write AccessReserved References Discrete I/O Addressing Input and Output Addressing for GMR 1024 ± 16 ± 3 x 32 +1 = 913 = %I0913 Q1009 to %Q1024I1009 to %I1024 Analog I/O Addressing 16 x 6 = 96 words required AnalogOutput AddressingExample Memory Required for Startup Initialization Data Register %R Memory Assignment for GMR Monitoring Forces and Overrides Monitoring the Fault TablesSystem Status %S References Status References GMR Status and Control %M References PLC OK Flags Resetting Status Flags Reference Nickname Description Meaning Control ReferencesM12257 Continue M12262 Report Clearing the PLC Fault Tables40-characterConfiguration File Description Programming for Startup Enabling Outputs At Startup Monitoring Startup Status Performing I/O Fault Reset Powerup Note Example Ladder Logic Fault. If both are not 1, initialization continuesThese Program Blocks represent logic Routines that are appropriate for Application Triplex bit is optional the need for this bit depends on When a third PLC comes on line Programming for I/O Shutdown Point FaultsEnabling I/O Point Faults Fault and No Fault Contacts Programming for Fault and Alarm ContactsClearing Faults Associated with Fault/No Fault Contacts Fault-Locating References Discrete Output Fault Contacts for GMR Discrete Input Fault Contacts for GMR Analog Alarm Contacts for GMR Analog Fault Contacts for GMR Y3 dummy not used Reading GMR DiagnosticsParameters for the Call Function Contains Data Table NumbersRange for Start Value Range for End Value Code Meaning Error Codes for GMR Diagnostics Global Data for the Application Program Programming for Global Data GFK-0787B Select F6 Add Element to Library Adding GMR10 to the Logicmaster Librarian Do not Rename GMR10 Storing a Program to the PLC GFK-0787B Field Description Using the Store Function Storing a Revised Program Storing an Identical Program Following CPU Replacement Press the Space Bar to Continue Using the Program Download UtilityUsing the Download Utility with the Default PLC IDs Processing Complete Customizing the Download Utility for Other PLC IDs Programming Information GFK-0787B Chapter Installation Information Termination Boards Genius Bus Connections Input Wiring Single Sensor to Three Blocks Triple Bus Three Sensors to Three Blocks Triple Bus DC Source Block IC660BBD020 Block Wiring for 16-Circuit Source Block in an Input Group DC Sink Block IC660BBD021 Block Wiring for 16-Circuit Sink Block in an Input Group DC Source Block IC660BBD024 Block Wiring for 32-Circuit Source Block in an Input Group DC Sink Block IC660BBD025 Block Wiring for 32-Circuit Sink Block in an Input Group Circuit, 4-Block Output Group Output Wiring for a 16-Circuit, 4-Block Group Block a Block Wiring for a 16-Circuit 4-Block Output Group ON±OFF±ON Test Output Autotest and Pulse TestingOFF±ON±OFF Test GE Catalog Number CR7RBXXEL Spectra 700 IEC Control Relay Output Wiring for a 32-Circuit, 4-Block Group Block a Block Wiring for a 32-Circuit 4-Block Output Group GFK-0787B Milliamp Appendix Catalog Number Firmware Description Revision Level TÜV Restrictions Appendix a TÜV Certification COMMREQ, DATAINITCOMM, Call SUB, Callexternal Appendix Maintenance Override Project engineer Projectengineer, Typeapproval Recommendations Index Index-2 Index-3 Index-4