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<== Date ==> <== Thread ==>

Subject: RE: Sequencer intro needed !
From: "Dalesio, Leo `Bob`" <dalesio@slac.stanford.edu>
To: "Emmanuel Mayssat" <emmanuel_mayssat@lynceantech.com>, "EPICS-tech-talk" <tech-talk@aps.anl.gov>
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:emmanuel_mayssat@lynceantech.com] 
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

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