No, that will process the output record, rewriting the output to the
device, which is generally not what is desired.
How about changing the output link to:
field(OUT, "mySettingAO NPP")
But if the record does not process then channel access monitors will not
be posted, so operator displays will not update?
Mark
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Emmanuel Mayssat
> Sent: Monday, December 03, 2007 6:50 PM
> To: John Dobbins
> Cc: EPICS Tech-Talk
> Subject: Re: device support for output connected to volatile device
>
> On Mon, 2007-12-03 at 18:17 -0500, John Dobbins wrote:
> > output records it is not obvious how to deal with this. I
> would like the output
> > values displayed on the operator screen to be correct even
> when they are changed
> > via means external to EPICS.
>
> You *may* be able to do this with a calcout with "on change" algorithm
>
> record(calcout, "myCO") {
> field(SCAN, ".1 second")
> field(INPA, "mySettingReadbackAI NPP")
> field(OOPT, "On Change")
> field(OUT, "mySettingAO PP")
> field(CALC, "A")
> }
>
> Just an idea,
>
> --
> Emmanuel
>
>
>
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