Experimental Physics and
Industrial Control System

Maren Purves via Tech-talk <tech-talk at aps.anl.gov> · Sun, 13 Nov 2022 23:12:46 -1000

Can you just set scanning to passive? - I know that depends on how the
processing is triggered, so it may not work in your case.

Aloha,
Maren Purves
East Asian Observatory

On Sun, Nov 13, 2022 at 10:09 PM Abdalla Ahmad via Tech-talk
<tech-talk at aps.anl.gov> wrote:
>
> Hello
>
>
>
> I would like to disable processing for certain PVs based on some condition, I used the DISA field by writing 1 to it in a dfanout record from a calcout record (OUT field). The setup is working fine but with a strange behavior (which might be expected). Writing anything to DISA does not take effect until the PV is processed, so I had to make another fanout record only to process those PVs whenever the calcout record is processed (FLNK). Now assume if the condition is met and the PVs got disabled, if you write anything to the PV, it will not process it but on the next change from calcout. This can be problematic in certain setups. Is there any way to avoid writing at all when the PV is disabled? Or a better way to disable PVs? Thanks.
>
>
>
> Abdalla Al-Dalleh
>
> Control Engineer
>
> SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East)
> P.O. Box 7, Allan 19252, Jordan
> Tel: +96253511348 , ext. 265
>
> Fax: +96253511423
>
> abdalla.ahmad at sesame.org.jo
>
> www.sesame.org.jo
>
>

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System