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: Arcnet question
From: James F Ross <[email protected]>
To: EPICS Tech Talk <[email protected]>
Date: Fri, 29 Mar 2013 14:02:23 -0400
Hello everyone,
I realize that this is rather ancient and as far as I know we are the only group to use arcnet still, but if anyone can offer any suggestions I would appreciate it.  The anode for the Time Projection Chamber at STAR uses an arcnet connection between the power supplies and the VME crate that runs the anode IOC.  Lately, if there is a problem with this IOC such as a communication problem or the IOC requiring a re-start, the arcnet connection is lost to the anode.  All of the voltages as seen by the IOC are zero and stay at zero (a default value, I believe, set by the IOC when the variables are initialized).   Generally, rebooting the IOC several times will eventually restore arcnet communication, but it is very touchy.  I'd like to figure out what exactly is going on if I can.

If anyone has any experience with epics and arcnet, or can suggest a good place I can find some reading material,  I would really appreciate the help. 
Thanks very much!
James
Navigate by Date:
Prev: Re:Fwd: Re: decimal value convert to hex problem zhangdemin99
Next: SIS3820 scaler limits Mark Davis
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:Fwd: Re: decimal value convert to hex problem zhangdemin99
Next: SIS3820 scaler limits Mark Davis
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 Apr 2015 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·