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Subject: Re: EPICS 'isegHAL' module
From: Bruno Martins via Tech-talk <tech-talk@aps.anl.gov>
To: "Hill, Bruce" <bhill@slac.stanford.edu>
Cc: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Fri, 9 Aug 2019 09:50:20 -0400
Hi Bruce,

I am working with Ethan on this project. Our goal is similar to yours: to use our standard tools and link some extra EPICS modules with the iseg IOC. Is it not possible at all to have a client to this isegHALservice that runs elsewhere? I am assuming such client would be just exchanging messages like "get voltage", "get status", "set voltage", etc.

Thanks!

Bruno


On Fri, Aug 9, 2019 at 1:24 AM Hill, Bruce via Tech-talk <tech-talk@aps.anl.gov> wrote:
Hi All,
The embedded IOC in these iSeg CC24 controllers is indeed the
fastest and easiest route to getting EPICS control of the modules.
If you only have a few crates you can hand customize and install
the iseg_epics.db and iseg_epics.sub files and you're good to go!

At SLAC we'll be deploying 6-10 of these mpod crates each w/ several
HV modules and may add some additional crates and/or LV modules
as we commission more LCLS2 chambers.

We wanted to be able to upgrade and version control our iSeg IOCs
w/ the same tools and EPICS 7 base releases as our other IOCs so we
found a way to do that and also add access security.

iSeg provided us w/ the arm-apalis gnu toolchain so we're cross-compiling
the iSegHAL module on our RHEL7 build server along w/ our EPICS base
and support modules and building IOC releases there on NFS.

The CC24 uses systemd services for startup, so we disable the isegioc
and install three slac systemd services.   One service does an NFS mount,
the next runs a startup script on the NFS mount that does other NFS
mounts, and a third that launches the IOC.

I've got this working on a demo unit and am looking forward to getting
our deployment crates and HV in so I can iron out any kinks in the scripts.
I"ve actually made a number of other changes to our demo system in the
course of this development so I need to make sure this all works from a
clean factory CC24.

If anyone's interested, contact me and I can provide more details re how
to get this working.

Cheers,
- Bruce
-- 
Bruce Hill
Member Technical Staff
SLAC National Accelerator Lab
2575 Sand Hill Road M/S 10
Menlo Park, CA  94025

On 8/8/19 12:05 AM, laurent daudin via Tech-talk wrote:

Dear Ethan,

Why don't you use directly the CC24 embedded IOC ?

I am using the EPICS "isegHAL" which is already in the controler, so from the iCS controler WEB page in the EPICS section you just have to :

- download the "iseg_epics.db" and "iseg_epics.sub" files

- modify these files if needed

- Upload these new files

- reboot the EPICS IOC

and it should works !

regards,

Laurent.


Le 07/08/2019 à 22:47, Fulcher, Ethan via Tech-talk a écrit :

Hello all,


I am building an IOC for an iseg CC24 Master power supply, and need an EPICS module called 'isegHAL'. I wasn't able to find a download for it on the hardware support by manufacturer EPICS webpage (https://epics.anl.gov/modules/manufacturer.php#ISEG). Would anyone know about this module or where to get it?


Thank you,

Ethan Fulcher

Facility for Rare Isotope Beams

Michigan State University

640 South Shaw Lane

East Lansing, MI 48824, USA

Email: fulcher@frib.msu.edu




--



Replies:
Re: EPICS 'isegHAL' module Florian Feldbauer via Tech-talk
References:
EPICS 'isegHAL' module Fulcher, Ethan via Tech-talk
Re: EPICS 'isegHAL' module laurent daudin via Tech-talk
Re: EPICS 'isegHAL' module Hill, Bruce via Tech-talk

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