EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  <20072008  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  <20072008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: RE: Setting an IOC clock from the vxWorks shell
From: "Thompson, David H." <[email protected]>
To: [email protected], tech-talk <[email protected]>
Date: Tue, 27 Feb 2007 14:30:52 -0500

Timo, Sheng Peng, and I have been collaborating on a package that loads onto an IOC that may help you.  It replaces the NTP client in iocClock with a system that provides for multiple time providers on an IOC, one of which is the vxWorks clock.  The vxWorks clock is set periodically when NTP or a better time provider is available.  It supports hardware timing systems as well.   One of the things it does is fall back to internal timekeeping if the NTP server fails, all transparently.

 

You can get it at http://ics-web1.sns.ornl.gov/share/generalTime.tar.gz.

 

There were presentations on it at the APS and SLAC EPICS meetings.

 

 


From: J. Frederick Bartlett [mailto:[email protected]]
Sent: Monday, February 26, 2007 6:25 PM
To: tech-talk
Subject: Setting an IOC clock from the vxWorks shell

 

  Recently we have been having problems with IOC timestamp synchronization on our EPICS network. The timing master  is unable to obtain timing information from our ntp server -- see Geoff Savage's techtalk note on 15 Feb 2007. While we are finding the solution to that problem, I would like to make one of our IOC's a timing master and set its clock to approximately the correct time. Does anyone know of a method of setting the IOC's clock from the vxWorks shell?

Fritz

-- 
J. Frederick Bartlett
Fermi National Accelerator Laboratory
D0 Experiment/Online Systems and Controls
 
[email protected]
630-840-4058
 
 

Replies:
Re: Setting an IOC clock from the vxWorks shell Ralph Lange
References:
Setting an IOC clock from the vxWorks shell J. Frederick Bartlett

Navigate by Date:
Prev: Re: Orderly IOC shutdown? Michael Abbott
Next: Re: Setting an IOC clock from the vxWorks shell Ralph Lange
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  <20072008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Re: Setting an IOC clock from the vxWorks shell Andrew Johnson
Next: Re: Setting an IOC clock from the vxWorks shell Ralph Lange
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  <20072008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 10 Nov 2011 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·