Hello out there does anyone know how to upload a plc program from a wago 750-842 plc? I have tried both wago's I?O pro and CoDeSys software. Please Help!
Depends, did you download the program to it in the first place?
If so, you would have had to do a SourceCode Download to the Gateway as well. Here is a nice video I put together for the TURCK Programmable products that shows how this is done as well.
http://www.youtube.com/watch?v=2xP7qCypD9E