[Hallb-engineering] DP8620VCLDP

Eugene Pasyuk pasyuk at jlab.org
Mon May 13 15:47:47 EDT 2024


Do we need hall access, or will everything be done remotely?

-Eugene


From: Denny Insley <dinsley at jlab.org>
Sent: Monday, May 13, 2024 15:32
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<mailto:hallb-engineering-bounces at jlab.org>> on behalf of Eugene Pasyuk via Hallb-engineering <hallb-engineering at jlab.org<mailto:hallb-engineering at jlab.org>>
Sent: Monday, May 13, 2024 2:59:49 PM
To: Brian Eng <beng at jlab.org<mailto:beng at jlab.org>>; Probir Ghoshal <ghoshal at jlab.org<mailto:ghoshal at jlab.org>>; Sandesh Gopinath <gopinath at jlab.org<mailto:gopinath at jlab.org>>; David Kashy <kashy at jlab.org<mailto:kashy at jlab.org>>
Cc: Hallb-eng <hallb-engineering at jlab.org<mailto:hallb-engineering at jlab.org>>; dsg-hallb magnets <dsg-hallb_magnets at jlab.org<mailto:dsg-hallb_magnets at jlab.org>>
Subject: Re: [Hallb-engineering] DP8620VCLDP

So, what's the verdict?


-Eugene





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From: Hallb-engineering <hallb-engineering-bounces at jlab.org<mailto:hallb-engineering-bounces at jlab.org>> on behalf of David Kashy via Hallb-engineering <hallb-engineering at jlab.org<mailto:hallb-engineering at jlab.org>>
Sent: Monday, May 13, 2024 11:41
To: Brian Eng <beng at jlab.org<mailto:beng at jlab.org>>; Probir Ghoshal <ghoshal at jlab.org<mailto:ghoshal at jlab.org>>; Sandesh Gopinath <gopinath at jlab.org<mailto:gopinath at jlab.org>>
Cc: Hallb-eng <hallb-engineering at jlab.org<mailto:hallb-engineering at jlab.org>>; dsg-hallb magnets <dsg-hallb_magnets at jlab.org<mailto: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<mailto:beng at jlab.org>>
Sent: Monday, May 13, 2024 10:57 AM
To: David Kashy <kashy at jlab.org<mailto:kashy at jlab.org>>; Probir Ghoshal <ghoshal at jlab.org<mailto:ghoshal at jlab.org>>; Sandesh Gopinath <gopinath at jlab.org<mailto:gopinath at jlab.org>>
Cc: Hallb-eng <hallb-engineering at jlab.org<mailto:hallb-engineering at jlab.org>>; dsg-hallb magnets <dsg-hallb_magnets at jlab.org<mailto: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<mailto:kashy at jlab.org>>
Sent: Monday, May 13, 2024 10:49 AM
To: Brian Eng <beng at jlab.org<mailto:beng at jlab.org>>; Probir Ghoshal <ghoshal at jlab.org<mailto:ghoshal at jlab.org>>; Sandesh Gopinath <gopinath at jlab.org<mailto:gopinath at jlab.org>>
Cc: Hallb-eng <hallb-engineering at jlab.org<mailto:hallb-engineering at jlab.org>>; dsg-hallb magnets <dsg-hallb_magnets at jlab.org<mailto: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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