CX_Luigi

communication error variables for NX/NJ datalink using CJ areas

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getting two NX/NJ plc to communicate through CIP datalink, i can check  _EIP_TargetNodeErr[<IP node address>] and _EIP_RegTargetSta[<IP node address>] for communication problems. However this does not work when the datalink is done through CJ areas. I can get around it in program, but I would better like using an internal variable like the ones above. So far I didn't found anything in the documentation, are such flags existing and available as system variables?

Thanks

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Are you referring to using a CJ1W-EIP21 card or using the CJ areas for FINS?

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15 hours ago, photovoltaic said:

Are you referring to using a CJ1W-EIP21 card or using the CJ areas for FINS?

CJ area for FINS

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No system variables exist for communication that isn't cyclic and managed by the system itself. FINS, Modbus, MQTT, and Socket Services all fall in this category.

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NX CPU's want to communicate with 8 bites or more if you make them smaller they will error out with CJM cpu's omron has plenty manuals for setting up communication between these 2  

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