ET200SP Troubleshooting "Missing server module message"?

Hello all,

One of the server modules on my PLC racks suddenly came up with a message stating that the station had stopped, with the server module missing. I can quite plainly see the server module; it's physically present. I've also switched it for another one but that didn't seem to do anything either.

For reference, my setup is as follows:
- CP1616 card as IO Controller
- 3x S7-1500 PLCs as IO Devices
- Various AI, AO, DI, DO, CMPtP, Interface Modules, etc.

It's been used in production for over a year or two now without any issues, up until now. And asking around, it was still working last Friday.

I'm not finding the TIA Portal diagnostics to be very helpful. I've tried restarting the PLC rack a few times, as well as the box holding the IO Controller, and the IO Controller user program, but nothing seems to work.

HMI: "Fault: Load voltage failure in group starting up of real slot 0 on 0"
PLC: "Fault Station stop: Server module missing - ### 6893: 64533 ### on 0"
|> Component: PROFINET IO-System / PLC1 RACK3 / Server module_1

Anyway, I wondering if anyone had any ideas as to what else I can try to fix/troubleshoot this problem?

Thank you,
- janneia

Hello janneia,

could it bee that one base unit is out of order?
What is the content of the diagnostic at the PLC, it should help to delimit the failure.

It can also a possibility that your IM is damaged.

I hope this is helpful.

regards
CaOd

Hi janneia,

please check manual about server moudule of ET200SP:

https://support.industry.siemens.com/cs/de/en/view/63257531

Regards,

Towome

hi janneia,

maybe you can detect something by changing the setup and its configuration.

hope this helps,

regards

Hey everyone,

Thanks for all the suggestions. Modifying the configuration proved to be most helpful.

As it turned out, one of the circuit breakers was tripped at the back. I discovered this when I set every single module on that particular "rack" containing the ET200SP to show all diagnostics, and received more meaningful fault messages.

Regards,
- janneia