Re: PVaccess | pva2pva/QSRV Resources

[Timo Korhonen via Tech-talk <tech-talk at aps.anl.gov>]

I fully agree with Ralph.

However, I still think that what we are missing are examples for users that are maybe less interested in writing their own code but want to try out and hopefully then use what is provided.

Also, it is important for people who set up and manage the systems and infrastructure to understand the configuration options, how e.g., the channel search works,  etc.

PVXS documentation is good, but it is not easy for a new user to get started and figure out what is currently there, what pieces of documentation to read, or if there is something in the first place.

 

The CA manual could use (read: severely needs, IMO) an update as well, but as of now there is very little if anything to help a new, or even experienced EPICS user to get started using PVA.

Which I find is a great pity; a lot of nice things can be done by using the group PVs with QSRV and JSON configuration.

 

Timo

 

From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Ralph Lange via Tech-talk <tech-talk at aps.anl.gov>
Reply to: Ralph Lange <ralph.lange at gmx.de>
Date: Friday, 10 February 2023 at 11:35
To: EPICS Tech Talk <tech-talk at aps.anl.gov>
Subject: Re: PVaccess | pva2pva/QSRV Resources

 

On Thu, 9 Feb 2023 at 20:21, Ignacio Arriagada via Tech-talk <tech-talk at aps.anl.gov> wrote:

• Is there a PVAccess reference manual (a la CA)? I have been trying to use the protocol specification page in github, but it would be great if there was something covering PVAccess from a higher level perspective.

I would recommend PVXS [1] as client (and server) library. The older implementations that are currently shipped as part of Base will be phased out.

PVXS has pretty decent documentation. [2]

 

Cheers,
~Ralph

 

[1] https://github.com/mdavidsaver/pvxs

[2] https://mdavidsaver.github.io/pvxs/