Brian,
The way we do this is to make the data acquisition program be a channel
access client, rather than a channel access server. The scan software
writes a 1 to a local "Busy" record, which is just like a binary output
record except it does not do the forward link until its value goes back to
zero.
The acquisition program monitors that Busy record. When it goes to 1 it
starts collecting data. When the data acquisition is done it sets the Busy
record back to zero, which lets the scan continue. This method does not
have a problem with a 30 second limit.
Mark
- Replies:
- Re: Callbacks and the PCAS question. Brian Tieman
- Navigate by Date:
- Prev:
Re: dm won't load gif Ian Smith
- Next:
MATLAB and EPICS Channel Access Ernest L. Williams Jr.
- 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:
Callbacks and the PCAS question. Brian Tieman
- Next:
Re: Callbacks and the PCAS question. Brian Tieman
- 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
|