Has anyone tried to connect a ML1400 to a Pneumercator TMS Panel? I am currently trying to pull data via Modbus from the TMS panel to the ML1400. I have followed the many examples of Comm 0 setup shown on this site. I have verified all of the settings at both ends and wiring. However, when I run the code I get error 37, "Message timed out in local processor". I am wondering if I just wired the dang thing wrong, but its modbus... not many ways of doing it wrong.
I am using Channel 0, Modbus RTU Master, No Handshaking (485 Network)
In the MSG Setup: Channel 0, Command 03, Table N10:0, 1 Element, 16bit, Time out 3, Address (used values per TMS Spec), Slave Node 1 (verified at TMS).
I am using the 1763-NC01. The TMS only has three landings, A+, B-, and Shield which I have wired to the 1763-NC01 A, B, Shld.
I have tried changing nodes, different wires, switching around connections, checking the termination resistor. No matter what I do, I get the same response from the PLC: "Message timed out.". I even have two identical PLCs and TMS panels to work with just in case there was an out of the box failure. No difference in behavior.
Thanks to anyone that can help or shed light on some stupid mistake I made.