Is there a guideline to go by when messaging? I have over 100 message read instructions. Can I execute them all at once? Should I stagger them? What is the deciding factor to c …

I'm looking to monitor a pulse output from a plant's main gas flowmeter, and would rather not have to wire it back to a counter card on an unrelated PLC. The goal is to get flow lo …

Scenario: Computer has Ethernet connection going to first PLC (Momentum Ethernet) with MB+ adapter which connects to second PLC (Momentum MB+). Computer doesn’t have MB+ adapter. …

I have to communicate to a stepper motor controller and I'm using VB 2008 Express. I had thought the interface was going to be USB but the one that showed up has an ethernet interf …

Has anyone ever communicated between a MicroLogix 1100 and ABB ACS800 drive over Ethernet? Possibly using explicit messaging, I don’t believe the ML1100 supports Ethernet I/P.

Is there a way to monitor the status of an Ethernet I/O module (ENBT)? In particular, when communications is lost, to trigger a fault indication?