RE: Going full PVA?

["Leblanc, Gregory via Tech-talk" <tech-talk at aps.anl.gov>]

Tom,

 

Would you be able to share some of the general advice and expertise that you found most helpful?  I’m still working on building a good mental picture of how an EPICS setup might work for our lab, and whether that’s the right path for us to enhance functionality, or if we should continue with our in-house software.

     Greg

 

--

Gregory Leblanc

Accelerator Engineer

Edwards Accelerator Lab - Ohio University

123 University Terrace

Athens, OH 45701

leblanc at ohio.edu

M: (401) 52-OUAL1 or (401) 526-8251

 

 

From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of Stainer Tom via Tech-talk
Sent: Tuesday, June 8, 2021 3:53 AM
To: tech-talk at aps.anl.gov
Subject: Going full PVA?

 

Dear tech-talk,

 

I am looking for some general advice and expertise on CA vs PVA in practice. After reading about the differences and the theoretical points of view, I am now interested to learn about the practical side of things.

Specifically, if one were to go full PVA (no CA), what pitfalls or problems would I encounter?

 

For example, if I have to support a legacy system or device which already has a CA interface how difficult is it to port or map this to PVA?

Do CA <-> PVA translators exist in the community?

 

I am of course aware of certain extensions and libraries not yet supporting PVA, but my question relates more to the hardware side of things and networking.

 

Maybe an additional question which might prove helpful – has anyone ever gone full PVA?

 

The prospect of using one protocol is very much more appealing and PVA seems to be the new and improved protocol. Particularly I would like to take advantage of things like RPC and the “smart database”.

 

I realize open questions like these can sometimes yield some varied responses but any advice would be greatly welcomed.

 

Kind regards,

Tom