DI840 24Vdc, 16 Ch, SOE channel status not stable (Redundant mode)
has someone get experience with DI840 that the Channel status is not stable (drop) intermittenly.
action taken already check the cable, connection, swap with normal module, swap device, even makesure the DI channel module is good by jumper the DI channel (normal), but when put on single module (mean that take out one module as its redundant) resulting normal, then put back the module (in redundant mode) resulting same trouble (drop).
Now we are monitoring the signal after change all module (2 module in redundant)
if you has same issues please share & advise
We have no experience of such problem with DI840
You have most probably faced some kind of intermittent board, hardware error.
I guess you have checked that all board connector pins are ok?
You have done the right thing by replacing the boards, and keep monitor the boards and signals.
If you have a chance to, and have time, run the faulty modules in an in-house controller for verification.