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

Subject: Re: Sequencer intro needed !
From: Eric Norum <norume@aps.anl.gov>
To: Emmanuel Mayssat <emmanuel_mayssat@lynceantech.com>
Cc: "tech-talk@aps.anl.gov Tech-Talk" <tech-talk@aps.anl.gov>
Date: Thu, 27 Apr 2006 14:46:36 -0500
The example application produced with 'makeBaseApp.pl -t example' includes a simple SNL program that performs a task similar to the one you describe below. I'm sure that you'll be able to quickly convert it to your needs.

The decision as to when to use the database and when to use the sequencer sometimes comes down to simply a matter of preference on the part of the designer.

On Apr 27, 2006, at 2:35 PM, Emmanuel Mayssat wrote:

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"


-- Eric Norum <norume@aps.anl.gov> Advanced Photon Source Argonne National Laboratory (630) 252-4793



References:
Sequencer intro needed ! Emmanuel Mayssat

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