GSV question

Is there an attribute I can use with an input block to detect if an input has a proximity sensor plugged into any particular port, while the proximity sensor is not detecting, or not passing voltage?

If it’s is an io link sensor and an io link master then yes, otherwise I don’t believe so but depends on what you are using for the “block”.

It depends on the input module and the sensor.

Some diagnostic inputs can detect broken wires on the input, and have a "pulse test" feature.

A method that doesn't depend on the input module's technical features is to get a switch that has both a N.O. and N.C. output, and check them to be sure they are complementary. If both or OFF or both are ON, then something has gone wrong with the wiring or the switch.

Thanks. The obvious tips are difficult sometimes. Found what I needed in the manual for my equipment. My flavor of IO block has Channel Diagnosis.