Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  <20092010  2011  2012  2013  2014  2015  2016  2017  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  <20092010  2011  2012  2013  2014  2015  2016  2017 
<== Date ==> <== Thread ==>

Subject: Re: CA link behavior
From: Ralph Lange <Ralph.Lange@bessy.de>
To: tech-talk@aps.anl.gov
Date: Fri, 13 Nov 2009 15:39:05 -0500
The only case with a somewhat similar behaviour are CA input links. They set up a CA monitor and will get values on reboot or reconnection. Which may trigger record processing if the input link is CP (or CPP on a passive record).

(I.e., any record with a CP/CPP+passive input link will process at boot time, regardless of PINI value.)

Ralph


On Fri 13 Nov 2009 15:24:28 Andrew Johnson wrote:
Hi Geoff,

On Friday 13 November 2009 13:38:36 Geoff Savage wrote:
I have a passive stringout record in IOC A whose OUTLINK references an
mbbo record in IOC B.  When I reboot IOC B the value in the stringout
record is written to the mbbo record even though the stringout record
has not been processed.

A bit more background.  The stringout record will be processed by a
calc record when a temperature becomes too high.  The mbbo record
controls the power to a front end board.  So the value being written
is to power off the front end board whenever the IOC B is rebooted.

This doesn't sound like it should be happening, unless there's something else going on. Have you tried setting TPRO on the mbbo record? The output from
    dblsr "<mbboRecordName>", 2
might provide some more clues as well.

Can you post the two complete record definitions extracted from their .db files, and the output from dbpr on both records with an interest level 3 or higher. Also the Base version number that you're running (and whether it contains any significant modifications to the official release), and the target architectures of the two IOCs for completeness sake.

- Andrew

Replies:
Re: CA link behavior Emmanuel Mayssat
References:
CA link behavior Geoff Savage
Re: CA link behavior Andrew Johnson

Navigate by Date:
Prev: Re: CA link behavior Andrew Johnson
Next: Re: CA link behavior Emmanuel Mayssat
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  <20092010  2011  2012  2013  2014  2015  2016  2017 
Navigate by Thread:
Prev: Re: CA link behavior Andrew Johnson
Next: Re: CA link behavior Emmanuel Mayssat
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  <20092010  2011  2012  2013  2014  2015  2016  2017 
ANJ, 31 Jan 2014 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·