Experimental Physics and
Industrial Control System

Timo Korhonen <[email protected]> · Tue, 27 Mar 2018 13:28:09 +0000

Hi all,

With some more investigation the issue turned out to be related to the
missing PVA security features. CAS has a function ca_write_access() (and a
corresponding callback); this method does not (yet) exist in PVA. The PVA
security has to be implemented first.

There was some email exchanges (not on this list) with Michael concerning
what has to be done.

I also checked for myself and (of course) CS-Studio (thus pvaJava) can
read and write using PVA and qsrv, no problem.

(I noticed one oddity though: command line pvget on MacOS gives different
values with and without monitor. "pvget <channel>" gave zero when "pvget
-m <channel>" gave correctly changing values. This has nothing to do with
Java, though.)

Sorry about the confusion.

Timo 

On 27/03/18 15:17, "Kasemir, Kay" <[email protected]> wrote:

>> it appears the newest version of pvAccessJava is still not implementing
>>read/write for PVAs.
>
>???
>
>The V4 introduction that we did at the Japan EPICS meeting used CSS with
>pvAccessJava 5.1.1.
>It can read and write PVs via pva://.., using and IOC with pvaSrv.
>
>-Kay
>

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System