I want to use an "always high" digital tag sent from VTScada to the PLC as a comms status bit.
I've tried creating a numeric calculation tag and entering the PLC bit address in the address field, but this doesn't work (I'm assuming because the numeric calculation only outputs analog, but correct me if I'm wrong).
I have tried to use a digital tag with start condition, but not sure what to put in the expression. Entering "1" doesn't work. Would appreciate any advice.