Experimental Physics and
Industrial Control System

	I may have been the one who initiated the
discussion a few years ago. I encountered a situation
which I believed was best addressed using server-side
aliases. I created a patch to EPICS core (which could
be loaded into a VxWorks system as a separate module),
which implemented server-side aliases.

	The other option, of course, is client-side.
E.g. aliases could be managed within a name server.
At facilities which use databases to map "system
names" to PVs, such a system could be used for aliases
as well. Perhaps one of these solutions works for
you?

	If you'd like to try the server-side solution,
I can try to dig up the module. IIRC, it supported a command
(the kind that would go in st.cmd) which defined an alias
to an existing PV, a command to print out alias information,
and the support to add that alias to all the infrastructure
for name lookup inside an IOC.

P.S. As near as I could tell, there was not universal
enthusiasm for server-side aliases at that time. Maybe
at next week's EPICS collaboration meeting the discussion
could begin anew?

Hi,

We are currently wondering about the ability of having PV aliases to help to keep naming coherence as seen from operators even though developments have been done by different people with different views, software internals, concepts or architecture etc ...

I looked within the tech-talk that some years ago, there were some discussions concerning this point. What is the current status now ? Is it possible to specify aliases to existing PVs ?

If so, how can this be achieved ? If not, are there some workarounds ?

Eric Lécorché

Replies:

Re: PV aliases Heinrich du Toit

References:

PV aliases Lecorche Eric

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