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<== Date ==> <== Thread ==>

Subject: Extending EDM's supported PVs/data acquisition protocols
From: Carl Schumann <[email protected]>
To: [email protected]
Date: Wed, 20 Aug 2008 14:00:31 -0500
Hi,

The E in EDM stands for extensible as I understand it. There are two ways that I could think of a display manager(DM) being extensible:
1. extending the widget set
2. extending the set of PVs/data acquisition protocols supported by the DM
My interest is doing the later without having to reimplement a whole new widget set as well.


We have users (mostly physicists and engineers but not programmers) doing development with EDM (and EPICS) that are unable to access useful machine parameters that are currently only available through ACNET. Here at FNAL we will probably never be an exclusively EPICS installation, because of the volume of machine parameters that are instrumented via home-grown ACNET. I would like to extend EDM so that it can display legacy ACNET machine info in addition to EPICS machine info. It would appear this would be possible at some level, since it appears EDM already supports EPICS and CALC PVs. Is it reasonable/possible to extend EDM to support other "PV"s besides EPICS and CALC? What is not clear so far to me is how much coupling there is between the widget set and the PV implementations. Assuming I can develop an ACNET PV for EDM, would I also need to develop an ACNET widget set?

Thank you for your time.

Sincerely,
Carl Schumann




Replies:
Re: Extending EDM's supported PVs/data acquisition protocols Kasemir, Kay (ky9)
Re: Extending EDM's supported PVs/data acquisition protocols J. Lewis Muir
RE: Extending EDM's supported PVs/data acquisition protocols Chestnut, Ronald P.

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