[Dsg-hallb_magnets] DBX Cryocon Watchdog PV

[Brian Eng]

That watchdog timer doesn't dump anything (AFAIK) it's merely there to help see what the status of things are.

Also it was only a PLC -> EPICS issue.

Still trying to piece together the exact sequence of what happened yesterday.
________________________________
From: Amrit Yegneswaran <yeg at jlab.org>
Sent: Sunday, June 26, 2022 7:26 PM
To: Brian Eng <beng at jlab.org>; Nathan Baltzell <baltzell at jlab.org>
Cc: dsg-hallb magnets <dsg-hallb_magnets at jlab.org>
Subject: Re: DBX Cryocon Watchdog PV

brian
have been following your investigation
i dont understand why the magnet went into a controlled fast dump
because the watchdog timer didn't update?
was the pv name changed?
what is the plan going forward
amrit
________________________________
From: Dsg-hallb_magnets <dsg-hallb_magnets-bounces at jlab.org> on behalf of Brian Eng <beng at jlab.org>
Sent: Sunday, June 26, 2022 6:26 PM
To: Nathan Baltzell <baltzell at jlab.org>
Cc: dsg-hallb magnets <dsg-hallb_magnets at jlab.org>
Subject: Re: [Dsg-hallb_magnets] DBX Cryocon Watchdog PV

I'm not sure what it should be, that's what is on the CSS screen.
________________________________
From: Nathan Baltzell <baltzell at jlab.org>
Sent: Sunday, June 26, 2022 5:46 PM
To: Brian Eng <beng at jlab.org>
Cc: dsg-hallb magnets <dsg-hallb_magnets at jlab.org>
Subject: Re: DBX Cryocon Watchdog PV

Hi Brian,

I don't see that PV being alive.  Is that the correct name for the PV?

-Nathan

On Jun 26, 2022, at 5:42 PM, Brian Eng <beng at jlab.org<mailto:beng at jlab.org>> wrote:

Nathan,

Do you know which PLC tag this PV is supposed to be using?

B_TORUS:DBX:CryoCon:WatchDog

It doesn't seem to be incrementing like I'd expect it to.

Thanks
Brian

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