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  <20112012  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  <20112012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: UKIRT's Allen Bradley temperature problem - solved
From: Maren Purves <[email protected]>
To: EPICS tech-talk <[email protected]>
Date: Wed, 05 Jan 2011 15:18:10 -1000
Hi all,

at UKIRT we had a long standing problem with devices
on our Allen Bradley not working in cold temperatures.
At the Brookhaven EPICS meeting Karen White mentioned
something about the operating specs of the Panelview
(like we have one in the UKIRT dome - i.e. more or less
outside). I asked her after her talk and she said that
we're most likely operating the Panelview out of spec.

It has since been tested that even when the Panelview
is unresponsive the EPICS control still works, so the
old problem wasn't a problem of the Allen Bradley as a
whole but only with the Panelview.

We have started remote operation since then and were
glad to have a few cold nights before doing so, so that
the operating personnel were able to verify that they
could (e.g.) close the dome remotely (from an EPICS
screen) even when they couldn't close it 'locally'
(from the Panelview). Knowing this made it much easier
for us to start remote operation (from Hilo, without
anybody in the UKIRT dome) without being worried about
equipment damage by weather.

I wanted to finally broadcast a "Thank you" to Karen.

Aloha,
Maren Purves


Navigate by Date:
Prev: Re: GPIB to ethernet converter Craig Walther
Next: Re: MOXA terminal server Dirk Zimoch
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  <20112012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Re: GPIB to ethernet converter Eric Williams
Next: pyepics callback function problem Janko Kolar
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  <20112012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 18 Nov 2013 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·