Re: generating an EPICS database for BACnet

["Thomas, Patrick via Tech-talk" <tech-talk at aps.anl.gov>]

Hi Alex,

That would be of interest to me.

Thank you,

Patrick

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From: Wells, Alex (DLSLtd,RAL,LSCI) <alex.wells at diamond.ac.uk>
Sent: Tuesday, January 31, 2023 2:10 AM
To: Thomas, Patrick <pthomas at caltech.edu>
Cc: tech-talk at aps.anl.gov Talk <tech-talk at aps.anl.gov>
Subject: Re: generating an EPICS database for BACnet

 

Hello everyone,

At Diamond Light Source I run a system for doing something like what you describe. I will note in advance that it is very customized for our use case.

We run a program to scan the Bacnet network, looking for specific properties in specific objects in specific devices, save that to a PSQL database and then write it back out into a .db file (as well as things like generating Archiver information and some simple GUI screens)

Then at runtime we run a program that uses Bacnet to subscribe to all the saved properties, and pass that information to the IOC via a message queue. The IOC itself just exists to read this queue and push the data to records. This means we have a read-only display of all properties, but no ability to write to them.

Let me know if this might be of interest and we can discuss further.

Thanks,

Alex Wells

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From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Heinz Junkes via Tech-talk <tech-talk at aps.anl.gov>
Sent: Tuesday, January 31, 2023 6:08 AM
To: Thomas, Patrick <pthomas at caltech.edu>
Cc: tech-talk at aps.anl.gov Talk <tech-talk at aps.anl.gov>
Subject: Re: generating an EPICS database for BACnet

 

Hello Patrick,
it may not be what you are looking for exactly.

I have set up a python softIoc on a tiny project that uses BAC0 python to provide BACnet data points as Epics PVs.
https://gitlab.fhi.mpg.de/junkes/epics2bacnet/-/blob/master/bacnet2epics/softIoc.py

Maybe this will help you,
Heinz


> On 31. Jan 2023, at 01:25, Thomas, Patrick via Tech-talk <tech-talk at aps.anl.gov> wrote:
>
> Hi,
>
> I am about to start creating an EPICS database for a large number of channels that pull their data from BACnet and I was wondering if there is a tool already written to automate this process?
>
> Thank you for your time,
> Patrick

 

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