Hi,

I got called out to work on a DeltaV system, 3 racks of thermocouple, analog in and DI/DO. All the module lights except one were flashing error. The only module without an error is the sole analog input.

Module diagnostics shows all bad except the analog input.

I downloaded the network and did an Auto Sense Modules, this shows all the slots empty except for 1. I moved the good module to different slots, worked OK, Checked power supply, buss connectors and all the usual suspects.

I called the local DeltaV experts and they couldn't shed any light. The controller seems OK, I was able to do configuration changes. Has anyone seen anything like this happen?

Roy

 

Roy,

did you ever get any resolution to this? I have 3 RTD cards in a carrier that have started flaking out. The other I/O seems fine. I have a case in with Emerson and expect an email troubleshooting procedure.

Ken

 

Ken,
Yes after I left the local Emerson teck came out and claimed it was a faulty connection on the bus, I think he just pulled it apart and re-assembled. It's funny that it only effected some cards while other types would work in any slot.
Roy