EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  <20032004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  <20032004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: Re: [Fwd: Re: Does DISP work for DB OUT links? Related question]
From: Brian Bevins <[email protected]>
To: [email protected]
Date: Tue, 02 Sep 2003 11:32:09 -0400

Marty Kraimer wrote:
An additional comments on Jeff's second suggestion:

Fix 2:
There is a new field called AVAL (for asynchronous value) which is initialized at the start of processing to what
is in the VAL field. When processing completes the AVAL field is used to determine if monitors will be sent instead
of VAL.


This does seem like it should be easy to implement.

General Rule: Record support that allows asynchronous processing must do this for any field for which it checks for value change before issuing monitors.

Marty Kraimer

Does this really solve the original problem? When asynchronous processing starts for the second put won't it overwrite what the first put cpoied into AVAL?


--
Brian S. Bevins, PE
Computer Scientist / Mechanical Engineer
Thomas Jefferson National Accelerator Facility


Replies:
RE: [Fwd: Re: Does DISP work for DB OUT links? Related question] Jeff Hill
Re: [Fwd: Re: Does DISP work for DB OUT links? Related question] Marty Kraimer
References:
[Fwd: Re: Does DISP work for DB OUT links? Related question] Marty Kraimer
Re: [Fwd: Re: Does DISP work for DB OUT links? Related question] Marty Kraimer

Navigate by Date:
Prev: Re: Changes to records during asynch processing Marty Kraimer
Next: building medm on RH9/RH Motif Arne P. Freyberger
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  <20032004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Re: [Fwd: Re: Does DISP work for DB OUT links? Related question] Marty Kraimer
Next: RE: [Fwd: Re: Does DISP work for DB OUT links? Related question] Jeff Hill
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  <20032004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 10 Aug 2010 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·