EPICS Home EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

Format page
for printing


Search Tech-talk
1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  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  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017>  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>
Subject: aCalcout: how to obtain scalar from array?
From: "Paduan Donadio, Marcio" <[email protected]>
To: "[email protected]" <[email protected]>
Date: Wed, 18 Oct 2017 01:49:56 +0000

Good night for everyone.


I am using calc 3.6.1 and EPICS 3.15.5.


I am trying to obtain a scalar from an array using aCalcout, with the syntax AA[1], for example. Apparently, aCalcout is ignoring the calculation from this case. See outputs I tried with IX (NELM=3 and NUSE=3).


$ caget PNA:B084:RF01:_extractJitterFreqRangeData
PNA:B084:RF01:_extractJitterFreqRangeData 0
$ caget PNA:B084:RF01:_extractJitterFreqRangeData.AVAL
PNA:B084:RF01:_extractJitterFreqRangeData.AVAL 3 0 1 2

Trying IX[2]:

$ caput PNA:B084:RF01:_extractJitterFreqRangeData.CALC "IX[2]"
Old : PNA:B084:RF01:_extractJitterFreqRangeData.CALC IX
New : PNA:B084:RF01:_extractJitterFreqRangeData.CALC IX[2]
$ caput PNA:B084:RF01:_extractJitterFreqRangeData.PROC 1
Old : PNA:B084:RF01:_extractJitterFreqRangeData.PROC 1
New : PNA:B084:RF01:_extractJitterFreqRangeData.PROC 1
$ caget PNA:B084:RF01:_extractJitterFreqRangeData
PNA:B084:RF01:_extractJitterFreqRangeData 0
$ caget PNA:B084:RF01:_extractJitterFreqRangeData.AVAL
PNA:B084:RF01:_extractJitterFreqRangeData.AVAL 3 0 1 2

It works with subranges, like IX[1,2]:

$ caput PNA:B084:RF01:_extractJitterFreqRangeData.CALC "IX[1,2]"
Old : PNA:B084:RF01:_extractJitterFreqRangeData.CALC IX[2]
New : PNA:B084:RF01:_extractJitterFreqRangeData.CALC IX[1,2]
$ caput PNA:B084:RF01:_extractJitterFreqRangeData.PROC 1
Old : PNA:B084:RF01:_extractJitterFreqRangeData.PROC 1
New : PNA:B084:RF01:_extractJitterFreqRangeData.PROC 1
$ caget PNA:B084:RF01:_extractJitterFreqRangeData.AVAL
PNA:B084:RF01:_extractJitterFreqRangeData.AVAL 3 1 2 0

If aCalcout is not supposed to be used this way, could you suggest me another way to extract a scalar from an index of a waveform record?

Thank you very much,

Márcio Paduan Donadio
Control Systems Engineer
SLAC National Accelerator Laboratory
Advanced Instrumentation for Research Division
2575 Sand Hill Rd
Menlo Park CA 94025
Office (650) 926-5007​






Replies:
Re: aCalcout: how to obtain scalar from array? Paduan Donadio, Marcio
Navigate by Date:
Prev: Re: mrfioc2 release 2.2.0 Jeong Han Lee
Next: Re: aCalcout: how to obtain scalar from array? Paduan Donadio, Marcio
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  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: caQtDM installation help needed Mooney, Tim M.
Next: Re: aCalcout: how to obtain scalar from array? Paduan Donadio, Marcio
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <2017>  2018  2019  2020  2021  2022  2023  2024 
ANJ, 21 Dec 2017 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·