Re: Does anyone have documented PV Access run time ENV variables?

[Andrew Johnson via Tech-talk <tech-talk at aps.anl.gov>]

I'm attaching an Excel spreadsheet which is what documented the PVA environment variables on the original EPICS V4 website. We seem to have missed that when creating the EPICS 7 documentation. Some of the variables in this may be out of date and/or conflict with the newer PVXS definitions, but this is probably a good place to start for any new documentation that we develop.

- Andrew

On 5/3/23 7:13 AM, Timo Korhonen via Tech-talk wrote:

Hi Kuktae,

 

This is probably not what you are looking for, or at least not nearly the full story, but maybe helps:

 

https://github.com/epics-base/pvAccessCPP/wiki/protocol

 

Also, Michael Davidsaver has written documentation for PVXS:

 

https://mdavidsaver.github.io/pvxs/overview.html

 

This goes a bit more in the direction of user documentation.

 

And, partially, but not only because of this, we are preparing an EPICS Document-athon at ESS end of August (28.August – 1.September, 2023).

I will prepare an announcement – or first “save the date” kind of message – for that event as soon as I can figure out some details. But we have an OK for the event so it is going to happen.

 

 

Best regards,

 

Timo

 

From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of "Kim, Kuktae via Tech-talk" <tech-talk at aps.anl.gov>
Reply to: "Kim, Kuktae" <ktkim at slac.stanford.edu>
Date: Wednesday, 3 May 2023 at 05:35
To: tech-talk <tech-talk at aps.anl.gov>
Subject: Does anyone have documented PV Access run time ENV variables?

 

Hello everyone,

 

I am currently studying EPICS Channel Access (CA) and PV Access (PVAccess and PVXS), particularly the server/client-side environment variables used for run-time configuration. While researching, I came across very good documentation for EPICS CA, which can be found in the links below:

https://epics.anl.gov/base/R7-0/7-docs/CAref.html

https://docs.epics-controls.org/en/latest/specs/ca_protocol.html

However, I am having difficult finding good documentation for PVA on the EPICS base site:

https://epics.anl.gov/base/R7-0/7.php

 

Although, I did find some information on the PVXS site thanks to Michael Davidsaver, I still feel that is not sufficient. Here is the link to the information I found:

https://mdavidsaver.github.io/pvxs/netconfig.html

 

Could someone please point me in the direction of a reference document that provides more comprehensive information on PVA?

 

Thank you very much for your help.

 

Best regards,

Kuktae

-- 
Complexity is free, it's Simplicity that takes work.

Attachment: pvAccessConfig.xlsx
Description: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet