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  <20102011  2012  2013  2014  2015  2016  2017  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  <20102011  2012  2013  2014  2015  2016  2017 
<== Date ==> <== Thread ==>

Subject: Channel Access Writes Failed on Asyn Record Writable Fields
From: William Lu <weiwei@jlab.org>
To: tech-talk@aps.anl.gov
Date: Tue, 15 Jun 2010 15:39:33 -0400
I am having problems with channel access writes on asyn record's writable fields such AOUT and PORT. I created the following asyn tcp/ip port and the asyn record:

In a startup iocsh script:
 drvAsynIPPortConfigure("sockserv","127.0.0.1:9099",0,0,0)

The asyn record:
 record(asyn, LS450PS:asyn) {
 field(DTYP, "asynRecordDevice")
 field(PORT, "sockserv")
 field(ADDR,"0")
}

After the record has been loaded to the ioc, I cannot write the AOUT or PORT fields of the record through channel access. When I caput on those fields, I got the error messages like the following:

>caput LS450PS:asyn.AOUT "abc"
Old : LS450PS:asyn.AOUT
CA.Client.Diagnostic..............................................
Message: "Could not perform a database value put for that channel"
Severity: "Warning" Context: "detected by: devl17.acc.jlab.org:5064 for: LS450PS:asyn - with request chan=LS450PS:asyn.AOUT op=1 data type=DBR_STRING count=1"
..................................................................
New : LS450PS:asyn.AOUT


What is the problem? Any help would be gratefully appreciated.

William Lu
Jefferson Lab

--
Weiwei Lu
757-269-7476
weiwei@jlab.org


Replies:
RE: Channel Access Writes Failed on Asyn Record Writable Fields Mark Rivers
Re: Channel Access Writes Failed on Asyn Record Writable Fields Ralph Lange

Navigate by Date:
Prev: using hex numbers in calc records Martin Konrad
Next: RE: Channel Access Writes Failed on Asyn Record Writable Fields Mark Rivers
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  <20102011  2012  2013  2014  2015  2016  2017 
Navigate by Thread:
Prev: Re: using hex numbers in calc records Andrew Johnson
Next: RE: Channel Access Writes Failed on Asyn Record Writable Fields Mark Rivers
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  <20102011  2012  2013  2014  2015  2016  2017 
ANJ, 02 Sep 2010 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·