Re: Mapping customised pva structures to epics v4 Normative Types and v3 PVs (channel access).

[Michael Davidsaver via Tech-talk <tech-talk@aps.anl.gov>]

On 8/12/25 22:27, Heinz Junkes via Tech-talk wrote:

...
My current idea is to implement a service (Python?) that reads this user-defined structure with pva, breaks down the structure into individual NT-pvs and offers these 'individually' via pva (for the Archiver Appliance, for example) and, at the same time, also offers these PVs as ca-PVs for channel access (for our Save&Restore).

Which Save&Restore system/service are you using?

Now the question to the group: Is there a better way? And how would you implement my idea?

What you describe will work, and I can not think of a uniformly better way.

If retaining CA is still a hard requirement, you might investigate one of the IOC in python bindings:

https ://github.com/DiamondLightSource/pythonSoftIOC