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Reports until 14:40, Thursday 27 June 2024
H1 CDS
david.barker@LIGO.ORG - posted 14:40, Thursday 27 June 2024 (78707)
Upgraded CDS HW STAT to detect DAC FIFO errors not reported in STATE_WORD

Erik, EJ, Dave:

Following the discovery that h1sush2a's DACs had been in FIFO-HIGH-QUARTER error since 9th April 2024, I have done a rewrite of cds_status_ioc.py to catch these errors and report them on the CDS overview. Future RCG releases will raise these errors to the DAC bit in the STATE_WORD.

I found that cds_status_ioc was quite out of date, and needed a rewrite rather than addition of a DAC status monitor.

The new code's features are:

Get the number of frontends from the IOP INI files in the current DAQ running configuration

Parse the IOP INI files for all of its input data; num FECs, DCU_IDs, Number of ADC per frontend, Number of DAC per frontend.

On each processing run, the ADC_STAT and DAC_STAT PVs are read. None critical bits are masked out, and if any critical bit is bad an error is displayed.

For ADC, critical bits are: ONLINE, CHAN_HOP

for DAC, critical bits are: ONLINE, FIFO_STAT, FIFO_EMPTY, FIFO_HIGHQUARTER, FIFO_FULL

The IOC updates its clock every second, and process the CDS system every 5 minutes (GPS modulo 300). I've added PVs to show processing time, total num of ADCs and total num of DACs in CDS.

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