Thanks for the reply. The variables of interest are stored in DM[]. What you are suggesting is one way, I would consider, except, it's not worth more than $20 in software at best. My main thinking was toward the "Run" line has arguments similar to a script that would open the right windows, and connect to the PLC. I haven't looked to see if I could send commands to the PLC, much like communicating with a modem with "AT...".
Oh, though at the moment, it's a Windows computer, it could in future be Ubuntu Linux or similar.