Experimental Physics and
Industrial Control System

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

Subject:	Re: Does every DB record need to produce a PV?
From:	Ralph Lange via Tech-talk <tech-talk at aps.anl.gov>
To:	EPICS Tech Talk <tech-talk at aps.anl.gov>
Date:	Tue, 17 Feb 2026 20:00:25 +0100

On Tue, 17 Feb 2026 at 19:54, Johnson, Andrew N. via Tech-talk <tech-talk at aps.anl.gov> wrote:

... EPICS IOCs since 3.15 have supported server-side filters that let the client append parameterized channel filters to the PV name as well.

Completely forgot that, of course!

Given that some of these filters take numbers as configuration parameters, every single record provides an unlimited number of PVs.

(When you use record name aliases, even more ... ;-)

Cheers,
~Ralph

References:: Does every DB record need to produce a PV? David Bracey via Tech-talk; Re: Does every DB record need to produce a PV? Mark Rivers via Tech-talk; Re: Does every DB record need to produce a PV? Sukhanov, Andrei via Tech-talk; Re: Does every DB record need to produce a PV? David Bracey via Tech-talk; Re: Does every DB record need to produce a PV? Johnson, Andrew N. via Tech-talk

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ANJ, 19 Mar 2026