EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  <20162017  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  <20162017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: Active modbus read function upon request
From: Philippe Laurent <[email protected]>
To: "[email protected]" <[email protected]>, "[email protected]" <[email protected]>
Date: Tue, 2 Feb 2016 16:47:01 +0000
Hi Marc,

I would like to active some modbus port drivers upon request for retrieving Post Mortem datas.

It is possible to configure database such that the modbus read function is called only when a record is processing ?  (like write function)

If not, what is the best option to temporary desactive the modbus pooling ?
  1. Dynamically start an IOC well configured
  2. Just set an huge POLL DELAY on the modbus port
  3. Disable the asyn port with asyn record, I observe that :
    1.  modbus pooling thread is always active 
    2. trace in ioc shell : drvModbusAsyn::doModbusIO port LBEC-DCCT31:PostMortemRd2 disconnect error=asynManager::queueLockPort queueRequest failed: port LBEC-DCCT31 disabled
  4. Other




Préservons notre environnement, n’imprimez ce mail que si nécessaire.
Preserve our environment, print this email only if necessary.


Replies:
RE: Active modbus read function upon request Mark Rivers

Navigate by Date:
Prev: RE:Modbus 2.5 How to read a INT32_BE array from a modbus function Philippe Laurent
Next: epicsqt question D Peter Siddons
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  <20162017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: RE:Modbus 2.5 How to read a INT32_BE array from a modbus function Philippe Laurent
Next: RE: Active modbus read function upon request Mark Rivers
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  <20162017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 15 Jul 2016 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·