Experimental Physics and
Industrial Control System

From: Mooney, Tim M. <mooney at anl.gov>
Sent: Thursday, January 28, 2021 5:24 PM
To: tech-talk at aps.anl.gov; Luchini, Kristi L. <luchini at slac.stanford.edu>
Subject: Re: autosave -- NOWRITE pvs request

    set_requestfile_path(area_detector, "ADApp/Db")

tell autosave to look in the IOC directory before looking in the areaDetector directory for request files, and this allows you to copy the request file from areaDetector, edit it to meet your needs, and place it in the IOC directory.

I did not answer your question about a NOWRITE option because I'm not sure I understand exactly what you mean, and I haven't thought of a good place to put such an option.

Hi,

I’m having the following issue using autosave, where my ioc application  includes a number of epics modules/driver, which use the info field on many pvs.  This means that the ioc application does not have  control over what is being saved, unless I override the pvs in my application.  Now in my application, I could save local pvs  in a manually generated  req file, and initially auto-generate the standard autosave files, edit those files and give them unique filenames and load these manually, not using the auto-generate feature. However, numerous application are going to use these modules/driver and will have the same issues and will need to duplicate this work. So I’d  like some way to turn off the save feature for some pvs in the “req” list.  

For example:

If a “NOWRITE” option that could be set per pvs is available, then I could turn off the “info” field for select pv fields, so that the “req” file auto-generated would not include these pvs or would include them but comment them out, so that the monitor would skip those pvs.

Is this feature or is there another method that other have used to solve this same problem?

Thanks,

-          Kristi Luchini