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<== Date ==> <== Thread ==>

Subject: autosave - different PV to read and write
From: Ryan Pierce via Tech-talk <tech-talk@aps.anl.gov>
To: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Tue, 20 Aug 2019 08:31:00 -0500
I'm wondering if it is possible to configure autosave to read one PV and record its value in a save file, but on recovery, to write that value to a different PV. I am thinking along the lines of the .req file containing both the PV to read and the PV to write in the case where it would be different.

Example: The Canberra ISC amplifier can be placed into a mode where it automatically determines the Pole Zero value based on the input signal. This can be done once, and the measured value can continue to be used (assuming the detector or shaping time aren't changed.) If the IOC restarts, it would be helpful to restore this along with all the other settings. This can be read from $(P)$(AMP)PZRBV but it must be set in $(P)$(AMP)PZ

I'm guessing the concept of one PV to write with a separate readback PV is common. Has this been addressed, or is there a need for this?

Regards,

Ryan



Replies:
RE: autosave - different PV to read and write Mark Rivers via Tech-talk

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