Hello guys (and gals)
I have an interesting dilemma, we have a process here that is controlled at one end by one plc and at the other end by another plc. Both are slc 5/04 processors using 1746 IV16 dc source input cards. My delema is I need to somehow take an input from two photo eyes that are currently wired to one of the plcs , and send that same signal to the other plc. How can I (tap into the signal when the inputs utilize separate power supplies?
I have an interesting dilemma, we have a process here that is controlled at one end by one plc and at the other end by another plc. Both are slc 5/04 processors using 1746 IV16 dc source input cards. My delema is I need to somehow take an input from two photo eyes that are currently wired to one of the plcs , and send that same signal to the other plc. How can I (tap into the signal when the inputs utilize separate power supplies?