Experimental Physics and
Industrial Control System

Pete Jemian <[email protected]> · Tue, 20 Mar 2007 14:21:22 -0500

... or a state notation language program on the IOC
Pete
Maren Purves wrote:

Kay-Uwe Kasemir wrote:

On Mar 19, 2007, at 17:12 , David Dudley wrote:
Is there a way to:
1. Set a particular database block to scan at a specific time?

Hi Dave:
There is no simple building block like a "run-at" record.
I had a similar question some time ago,
and when you search tech-talk, you might still find the answers.
Things one can do:
1) run a 'cron' job on the host that basically performs a 'caput'
   to some PV which then triggers stuff.
   Trivial to set up, but then you depend on the host to trigger
   the IOC.

you can also run a cron job (spawn a process) on the IOC
(we do that on some of ours).
Aloha,
Maren

--
----------------------------------------------------------
 Pete R. Jemian, Ph.D.                <[email protected]>
 Beam line Controls and Data Acquisition, Group Leader
 Advanced Photon Source,   Argonne National Laboratory
 Argonne, IL  60439                   630 - 252 - 3189
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     Education is the one thing for which people
        are willing to pay yet not receive.
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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System