EPICS Home

Experimental Physics and Industrial Control System


 
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: RE: Sequencer intro needed !
From: "Dalesio, Leo `Bob`" <[email protected]>
To: "Emmanuel Mayssat" <[email protected]>, "EPICS-tech-talk" <[email protected]>
Date: Thu, 27 Apr 2006 13:56:19 -0700 
My test:

If it is steady state control, data acquisition, interlock, supervisory control --- it's a database problem
If it requires transitioning between steady states, timeouts, modes of operation -- it's a sequence.

Bob 

-----Original Message-----
From: Emmanuel Mayssat [mailto:[email protected]] 
Sent: Thursday, April 27, 2006 12:36 PM
To: EPICS-tech-talk
Subject: Sequencer intro needed !

Hello,

I am not familiar with the epics sequencer.
I would like to control for the following:
If analog output0 is below 4
then set analog output1 to 30
and analog output2 to 25

I have process variables for all those values.

With EPICS records to do the above, I can use a calc + a fanout + a sequencer.
 
But why not use this simple state diagram to be introduced to state notation language and the epics sequencer ? 
I have the SNL & Seq user's guide. ( but I never opened it) I do not know anything about SNL and Seq, but I understand state diagrams.
I have the epics base and a few extensions (if the sequencer needs to be installed then it is most likely not installed) I am not stupid (strong assumption here ;-) and can learn new things at an normal pace

How long will it take me to do the above with the epics sequencer?
Is there another method to accomplish what I want to do?
Thanks,

--
Emmanuel Mayssat
Cell: 650/793-0626
Lyncean Technologies, Inc.
"See the invisible"
Replies:
RE: Sequencer intro needed ! Emmanuel Mayssat
Navigate by Date:
Prev: RE: Sequencer intro needed ! Redman, Russell
Next: Re: R3.14 support for MIPS (hkbaja47) Andrew Johnson
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: Sequencer intro needed ! Redman, Russell
Next: RE: Sequencer intro needed ! Emmanuel Mayssat
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