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Reports until 12:04, Tuesday 02 July 2024
H1 CDS (CDS, VE)
patrick.thomas@LIGO.ORG - posted 12:04, Tuesday 02 July 2024 (78805)
Updated PLC code on h0vacmr for MKS 937 gauge controller calibration
Closes WP 11957.

Gerardo M., Patrick T.

From the WP:
Update and restart the PLC code on h0vacmr to repurpose the voltage and torr channels from the IP 8 gamma ion pump controller for the readout of a MKS 937 gauge controller. The channel names will remain the same, but the value of the pressure in torr will use a different calibration. This will take the MR CDS vacuum system down for the duration of the work. No DAQ restart should be needed.

This has been completed. The channel reading the MKS 937 is H0:VAC-MR_IP8_VI168_PRESS_TORR. There were a couple of issues generating the TwinCAT 3 solution from the updated powershell script. The first was an error that I did not completely catch, but did not repeat itself on subsequent runs. Twice when I ran it I got a message that the computer was low on memory, and I restarted the computer each time in response. Everything appears to be running now. The code is using git commit b977513795e0827c974ebab238a1cef219ad9840.
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