Experimental Physics and
Industrial Control System

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<== Date ==>		<== Thread ==>

Subject:	Re: R3.15.6 calc string doesn't accept LA, LB, LC, etc...?
From:	"Mooney, Tim M. via Tech-talk" <[email protected]>
To:	Neil Hamilton Jr <[email protected]>, "Tech Talk ([email protected])" <[email protected]>
Date:	Wed, 20 Mar 2019 04:17:17 +0000

I think you can get what you want with this _expression_:

"A#B+C#D+E#F+G#H;B:=A;D:=C;F:=E;H:=G"

Tim Mooney ([email protected]) (630)252-5417
Beamline Controls Group (www.aps.anl.gov)
Advanced Photon Source, Argonne National Lab

From: [email protected] <[email protected]> on behalf of Neil Hamilton Jr via Tech-talk <[email protected]>
Sent: Tuesday, March 19, 2019 7:42:11 PM
To: [email protected]
Subject: R3.15.6 calc string doesn't accept LA, LB, LC, etc...?

Hey all,

I'm trying to create a calc record that looks at previous values to increment a count. See below

record(calc, "RESULT_A")
{
   field(SCAN, ".05 second")
   field(INPH, "RESULT_A.LG")
   field(INPA, "RESULTINPA")
   field(INPC, "RESULTINPC")
   field(INPB, "RESULT.LA")
   field(INPE, "RESULTINPE")
   field(INPD, "RESULT.LC")
   field(INPG, "RESULTINPG")
   field(INPF, "RESULT_A.LE")
   field(CALC, "A#B?1:0+C#D?1:0+E#F?1:0+G#H?1:0")
}

If I change B to LA in the calc string above I get this error during dbLoadRecords

RESULT_A.CALC: Syntax error, unknown operator/operand in _expression_ "A#LA?1:0+C#D?1:0+E#F?1:0+G#H?1:0"

First I'd like to ask if the 'last' fields are usable this way. From the record reference manual it appears they are. Second, does anyone have a better way of just incrementing a count anytime the inputs change? Any help is very much appreciated.

Neil Hamilton Jr

References:: R3.15.6 calc string doesn't accept LA, LB, LC, etc...? Neil Hamilton Jr via Tech-talk

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Navigate by Thread:: Prev: Re: R3.15.6 calc string doesn't accept LA, LB, LC, etc...? Michael Davidsaver via Tech-talk; Next: Change/Sync General Time Providers Kyle Hesse via Tech-talk; 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, 20 Mar 2019

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System