You might want to check with some industrial controls guys that know Modbus.

I don’t run into Modbus much at work but here’s what I do know. Mosbus is shit. If a light is red, check the communication cables.

Link says document not found.

I think this is hilarious. I wonder if they have some kind of agreement that trump can’t just back out of. Maybe it was a handshake deal and he’s just now getting annoying enough?