CeeDee
Member
Just wanted to know some thoughts/experiences on using PLC outputs to directly control panel indicators (lamps). I have a machine that I noticed used a icecube-style relay (24vdc I believe) to control a couple of indicators via a separate relay, just for lamp testing. A simple lamp test rung is within the program that does this. This particular machine is using a SLC502. But I've also seen this method used on a micrologic 1400.
For solenoids, contactors, and the like are self-explanatory. I just wasn't too sure if it was "good practice" to use relays for indicators as well, or just a waste of time and money.
For solenoids, contactors, and the like are self-explanatory. I just wasn't too sure if it was "good practice" to use relays for indicators as well, or just a waste of time and money.