Joe, that looks like what I had in my head after this discussion.
For those following along, the Honeywell 2TL1-10 (MS27407-4) is a DPDT ON-ON-ON
switch. See the attached screen-grab from the datasheet for its functional drawing.
Pete, do you have a diagram that shows how this system was supposed to be wired?
It would be helpful to see how the switches would have interacted with the
PLC and the solenoids, and where 28V and ground enter the circuit.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=516870#516870
Attachments:
http://forums.matronics.com//files/2tl1_10_function_209.jpg
