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CJ2 CPU Unit Software User's Manual - CIP ETI

CJ2 CPU Unit Software User's Manual - CIP ETI

CJ2 CPU Unit Software User's Manual - CIP ETI

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5 Understanding ProgrammingError Simulation FunctionWith the CX-Programmer, it is possible to generate system errors in the virtual PLC during ladder programmingsimulation. It is easy to check operation of the ladder programming an the NS-series PTwhen a PLC system error occurs by generating the desired fatal or non-fatal system error using a specialoperation window. For information on the debugging procedure, refer to the CX-Programmer Operation<strong>Manual</strong> (Cat. No. W446).CX-ProgrammerSimulationPLC error generation simulatorPLC Error Generation Simulator1. Start Error ListExample: Turn ON battery error (A402.04).Turn ON the Cycle Time Exceeded Flag (A401.08).Turn ON the Memory Error Flag (A401.15).2. Error generation indicationSimulation in progressError occursVirtual PLC3. Error generation is simulated.55-9 Checking ProgramsNote Unlike with an actual error, ladder execution will not stop even if a fatal error is generated using the PLC errorgeneration simulation function.Additional InformationSystem errors can also be generated in the PLC by using a FAL(006) or FALS(007) instruction.5-9-3 Debugging with the Simulator<strong>CJ2</strong> <strong>CPU</strong> <strong>Unit</strong> <strong>Software</strong> User’s <strong>Manual</strong>5-99

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