APS-4ID-POLAR / APS-4ID-POLAR/ipython-polar

Setpoint (sometimes) doesn't update

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bug question
Dominant language
Python
Stars
1
Forks
3
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No merged PRs in 30d

Description

I've found that the setpoint PV sometimes doesn't update in our Lakeshore 340. So I created this workaround:

https://github.com/APS-4ID-POLAR/ipython-polar/blob/a22606fbf39bb71b375b41da94ebbec6507eb12c/profile_bluesky/startup/instrument/devices/lakeshore340.py#L16

This might be some sort of issue with EPICS?

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Research direction

Start by reading profile_bluesky/startup/instrument/devices/lakeshore340.py around line 16 and reproduce the intermittent setpoint PV behavior on the Lakeshore 340. Determine whether the missing update is in this device configuration or EPICS, then document the cause and verify that the setpoint updates reliably.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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