[Dsg-hallb_magnets] [Revised Logentry] Follow-up Re: solenoid alarm

[beng at jlab.org]

Logentry Text:
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The Solenoid LV stopped sending data to the PLC which caused a comm error.

The cernox and load cells went to 555.55 as well, which is what the PLC does when it doesn't get an update from the cRIO. The Hall Sensors just stopped updating their values.

We couldn't ping it over the network (which meant no resetting it remotely via NI software). Nothing in the serial console output either. However, rebooting via the serial console did work.

It took several clicks of the Reset PLC Interlocks button, but eventually the warning on the interlock screen was cleared as well.

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