brian@1234
New Member
I had a problem at work a while back when I was trying to figure out why my robot wasn't working correctly. I ended up finding that somebody had disconnected a wire from the PLC, but I never fully understood what was going on. The robot had a relay where I could measure 24 volts to the zero volts, but I couldn't measure the 24 volts to ground.
A couple of days ago I had another robot where I suspected that a proximity sensor wasn't working correctly. The proximity sensor had one wire 24 volts, one wire for zero volts, and one wire for the output. Here again I could measure the 24 volt output signal with respect to zero volts, but not to ground.
Can somebody please explain to me the difference between this zero volts and ground.
A couple of days ago I had another robot where I suspected that a proximity sensor wasn't working correctly. The proximity sensor had one wire 24 volts, one wire for zero volts, and one wire for the output. Here again I could measure the 24 volt output signal with respect to zero volts, but not to ground.
Can somebody please explain to me the difference between this zero volts and ground.