Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  <19961997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  Index 1994  1995  <19961997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020 
<== Date ==> <== Thread ==>

Subject: Re: State Program misses monitored events
From: Jeff Hill <johill@lanl.gov>
To: Philip Taylor <pbt@ast.cam.ac.uk>
Cc: Epics Technical List <tech-talk@aps.anl.gov>
Date: Mon, 08 Jul 1996 10:20:48 -0600
Philip Taylor wrote:

> I had imagined that the monitored events were queued
> and so I could never miss one - is this not the
> case when a state program is monitoring variables
> local to the IOC?

The monitored events _are_ queued by CA for both remote and
local PVs. The sequencer may be choosing to discard intermediate 
events that occur when it does not have the CPU (I had
a discussion with Andy several years ago concerning this and as I
recall he indicated that this was how the sequencer
was implemented - CA monitors are copied on to the 
sequencer's one entry deep cache).

Jeff


-- 

______________________________________________________________________
Jeffrey O. Hill			Internet	johill@lanl.gov
LANL MS H820			Voice		505 665 1831
Los Alamos, NM 87545 USA 	FAX		505 665 5107


References:
State Program misses monitored events Philip Taylor

Navigate by Date:
Prev: State Program misses monitored events Philip Taylor
Next: Extensions packaging in EPICS Software Distribution Mark Rivers
Index: 1994  1995  <19961997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020 
Navigate by Thread:
Prev: State Program misses monitored events Philip Taylor
Next: Extensions packaging in EPICS Software Distribution Mark Rivers
Index: 1994  1995  <19961997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020 
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 ·