EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  <20132014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  <20132014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: Re: seq and synchronous writes
From: "Konrad, Martin" <[email protected]>
To: "[email protected]" <[email protected]>
Date: Thu, 5 Sep 2013 22:30:44 +0000
Hi Mark,
> Event flags are very useful for detecting changes that may be too
> quick to catch by looking at the value.
I looked into them as well but the sequencer documentation says:

"Neither testing the value of a monitored channel in a when clause nor 
associating the channel with an event flag and then testing the event 
flag can guarantee that the sequence is aware of all monitors posted on 
the channel."

But going through the documentation again revealed that this issue can 
be fixed using queuing monitors: 
http://www-csr.bessy.de/control/SoftDist/sequencer/Tutorial.html#queuing-monitors

However the easiest way seems to be using asychronous pvPuts together 
with pvPutComplete. Unfortunately all these solutions require an 
additional state. But I think I can live with that...

Thank you!

Martin


Replies:
Re: seq and synchronous writes Benjamin Franksen
References:
seq and synchronous writes Konrad, Martin
Re: seq and synchronous writes Konrad, Martin

Navigate by Date:
Prev: RE: seq and synchronous writes Mark Rivers
Next: RE: seq and synchronous writes Mooney, Tim M.
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  <20132014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: RE: seq and synchronous writes Mark Rivers
Next: Re: seq and synchronous writes Benjamin Franksen
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  <20132014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 20 Apr 2015 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·