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: How to find out PVs preventing SSCAN from running?
From: "Li, Ji via Tech-talk" <tech-talk at aps.anl.gov>
To: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Wed, 4 Aug 2021 22:04:42 +0000
Hi,

We have an IOC doing ramps (1-D scan) using sscan record. It had been working properly in Debian 7 until recently we switched to RHEL8. When setting the EXSC field of the sscan record to 1, the scan didn't start as expected. The IOC reported:

----------------------------------------------
Starting new scan with unexpected faze ('SCAN_PENDING').
----------------------------------------------

The SMSG field or the sscan record read:

----------------------------------------------
Waiting for PV's to connect
----------------------------------------------

And the CPT field remained 0.

The sscan record has D01PV and P1PV associated with PVs also created in this IOC, both shown as connected, readable and writable from cainfo.

Is it possible to find out what PVs, or actually something else causing this problem?

Thanks for any comments.

Ji Li

Replies:
Re: How to find out PVs preventing SSCAN from running? Mark Rivers via Tech-talk
Navigate by Date:
Prev: RE: cbLow consumption randomly stopping Daykin, Evan via Tech-talk
Next: Re: How to find out PVs preventing SSCAN from running? Mark Rivers 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 
Navigate by Thread:
Prev: Re: Lib directory is not created for RTEMS (EPICS 7). Johnson, Andrew N. via Tech-talk
Next: Re: How to find out PVs preventing SSCAN from running? Mark Rivers 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, 04 Aug 2021 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·