Issue
Access Initiated Control (AIC) and Event Sequence (EV, Seq) do not work reliably on site, but the applications work on my simulation test equipment.
Environment
I/NET site with Access Initiated Control
Cause
My customer's Access Initiated Control (AIC) and Event Sequence (EV, Seq) do not work reliably on site, but the applications work on my simulation test equipment.
Resolution
An AIC or an Event is executed once. They are not "re-enforced." An otherwise small communication problem could inhibit the application. So if the control process is critical, use a calculation or module to re-enforce the triggering process. Refer to TCON 237, Calculations, page 7-4 and TCON 236, Direct Digital Control 14-1.
