russrmartin
Member
Hi all. I've got a new requirement I've never run into before. I'm being required to read control valve position feedback back the PLC. In the past, on control valves I've used, we have included discrete position feedback on the open and closed positions, but not an analog 4-20mA type of signal to monitor valve position. Has anyone done this? Can one specify a valve to come with analog feedback, or am I going to need some sort of external device? Thanks in advance.
Russ
Russ