[Hallb-engineering] DP8620VCLDP

[Brian Eng]

Should be fine to just do the reboot after everything is ramped down.

We need to make an access to do the reboot (have to physically power cycle it). I'd like to see if we can connect via USB before the reboot though.

I'd prefer not to upgrade the firmware in a piecemeal fashion (e.g. only the torus) and I'm not sure only 1 shift is enough time to do all of them.
________________________________
From: Denny Insley <dinsley at jlab.org>
Sent: Monday, May 13, 2024 3:31 PM
To: Eugene Pasyuk <pasyuk at jlab.org>; Brian Eng <beng at jlab.org>; Probir Ghoshal <ghoshal at jlab.org>; Sandesh Gopinath <gopinath at jlab.org>; David Kashy <kashy at jlab.org>
Cc: Hallb-eng <hallb-engineering at jlab.org>; dsg-hallb magnets <dsg-hallb_magnets at jlab.org>
Subject: Re: [Hallb-engineering] DP8620VCLDP

The concensus is to ramp down and reboot when we lose beam in the morning.  Brian what are your thoughts on the matter?


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________________________________
From: Hallb-engineering <hallb-engineering-bounces at jlab.org> on behalf of Eugene Pasyuk via Hallb-engineering <hallb-engineering at jlab.org>
Sent: Monday, May 13, 2024 2:59:49 PM
To: Brian Eng <beng at jlab.org>; Probir Ghoshal <ghoshal at jlab.org>; Sandesh Gopinath <gopinath at jlab.org>; David Kashy <kashy at jlab.org>
Cc: Hallb-eng <hallb-engineering at jlab.org>; dsg-hallb magnets <dsg-hallb_magnets at jlab.org>
Subject: Re: [Hallb-engineering] DP8620VCLDP

So, what's the verdict?


-Eugene





________________________________
From: Hallb-engineering <hallb-engineering-bounces at jlab.org> on behalf of David Kashy via Hallb-engineering <hallb-engineering at jlab.org>
Sent: Monday, May 13, 2024 11:41
To: Brian Eng <beng at jlab.org>; Probir Ghoshal <ghoshal at jlab.org>; Sandesh Gopinath <gopinath at jlab.org>
Cc: Hallb-eng <hallb-engineering at jlab.org>; dsg-hallb magnets <dsg-hallb_magnets at jlab.org>
Subject: Re: [Hallb-engineering] DP8620VCLDP

Hi Eugene,
I'm looking into the possible effect of the "not talking" signals.


Brian,
What signals from the solenoid are not updating in the Torus (DBX) PLC?

I see at some that are updating:
 DP8620VCLDP

B_TORUS:LHe:PV8522SR:CVAL  = PT8620
B_TORUS:LHe:PV8522SCD_Min_Min:CVAL = LL8620

Thanks Guys
Dave
________________________________
From: Brian Eng <beng at jlab.org>
Sent: Monday, May 13, 2024 10:57 AM
To: David Kashy <kashy at jlab.org>; Probir Ghoshal <ghoshal at jlab.org>; Sandesh Gopinath <gopinath at jlab.org>
Cc: Hallb-eng <hallb-engineering at jlab.org>; dsg-hallb magnets <dsg-hallb_magnets at jlab.org>
Subject: Re: DP8620VCLDP

So I poked at the tags some more and it turns out that this one is updated on the DBox PLC, which I can still connect to. So I manually reset the error bit and this value is now updating on the PID screens.

caget B_TORUS:LHe:PV8522SR_Val:CVAL.INP
B_TORUS:LHe:PV8522SR_Val:CVAL.INP @PLC_CRYO PV8522SR_Val.CVAL

The torus PLC still isn't seeing updating values from the solenoid, but maybe we can put off the reboot until tomorrow?

________________________________
From: David Kashy <kashy at jlab.org>
Sent: Monday, May 13, 2024 10:49 AM
To: Brian Eng <beng at jlab.org>; Probir Ghoshal <ghoshal at jlab.org>; Sandesh Gopinath <gopinath at jlab.org>
Cc: Hallb-eng <hallb-engineering at jlab.org>; dsg-hallb magnets <dsg-hallb_magnets at jlab.org>
Subject: DP8620VCLDP

Just as a reminder,
This signal is a calculated value base on two pressure sensors.
the math goes as follows:

DP8620VCLDP =PT8620-PT8571

There is a similar setup of
DP8670MAGDP = PT8670-PT8571

Dave
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