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  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 
<== Date ==> <== Thread ==>

Subject: Re: Question on waveform monitoring
From: Marty Kraimer <mrk@aps.anl.gov>
To: "Chestnut, Ronald P." <ronc@SLAC.Stanford.EDU>
Cc: "'tech-talk@aps.anl.gov'" <tech-talk@aps.anl.gov>
Date: Fri, 06 Jun 2003 07:07:18 -0500
Chestnut, Ronald P. wrote:
We have a special record to deal with digitizers, where the waveforms associated with each channel have fields with imaginative names like .ARY1, .ARY2 etc. These waveforms hold the past few pulses of Low-level RF data, and are meant to be picked up by the archiver when a trip occurs and new data are available. These internal arrays (ARY1, ARY2, etc.) are only read from the hardware (SIS or Joerger digitizers) upon a trip.

It seems that these fields are not being successfully monitored. Two stray waveforms have appeared in the archiver, but hundreds of others have not.

We could strobe these data out to traditional waveform records (and have in some cases). Data handled in this way do appear in the archiver, indicating that the monitoring worked.

Is there a way to have our cake and eat it too? Can we monitor these separate fields in the channel archiver or do we have to copy the data one more time to trigger a monitor?

/Ron Chestnut


Is your special record type calling db_post_events for EACH ARYx field when it is updated?

Is your special record type following all the rules about how to process a record?

Please review the chapter "Record Suppport" in the Application Developer's Guide.

Marty Kraimer


Replies:
Re: Question on waveform monitoring Tim Mooney
Re: Question on waveform monitoring Tim Mooney
References:
Question on waveform monitoring Chestnut, Ronald P.

Navigate by Date:
Prev: Question on waveform monitoring Chestnut, Ronald P.
Next: Re: Question on waveform monitoring Tim Mooney
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 
Navigate by Thread:
Prev: Question on waveform monitoring Chestnut, Ronald P.
Next: Re: Question on waveform monitoring Tim Mooney
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 
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 ·