I have several AI_SOFT_120 that are getting input via VIM/MODBUS via an external safety PLC.
When we lift an field instrument wire to the PLC, the PLC (of course) correctly interprets the open circuit. In DV we see a saturated low signal at the AI (blue value with a blue '?'), but I am not getting CND1/Failure = True
What is the recommended config to trigger CND1/Failure in this case? v12.3.1 - Is it necessary to enable the CND1 BAD_MASK parm - 'Input Failure/Bad PV'?
Happy Friday
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