Difference between revisions of "Active Collimator"

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(→‎List of EPICS PVs)
(→‎High Speed DAQ)
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*<code>IPMHDACO_GAINYM</code>
 
*<code>IPMHDACO_GAINYM</code>
  
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=== High Speed DAQ ===
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=== High Speed ROOT File Writer ===
  
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While high speed data are always served by the PXI EPICS IOC, another EPICS IOC server is set up on '''gluon29.jlab.org:26060''' to write the data to <code>/gluonraid1/Users/PXI</code> directory on demand.
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An EPICS IOC server is set up on '''gluon29.jlab.org:26064''' to write the raw waveform data to <code>/gluonraid1/Users/ac</code> directory on demand.
  
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The control of High Speed DAQ is in the [[Solenoid_EPICS_Screen#Voltages | Voltage Taps/PXI GUI]].
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The control of this High Speed DAQ can be found in Hall-D's EPICS GUI:
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Start or Stop the '''High Speed ROOT File''' by clicking the button underneath the title.
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# Open CSS EPICS Control following [https://hdops.jlab.org/wiki/index.php/Slow_Controls_Shift#EPICS_Control_Screens instructions]
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Once started, make sure the a new ROOT file is created and the File Size is increasing.
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# From '''Main Action Bar''', open '''Active Collimator''' GUI.
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If not, one need to restart the '''pxiroot''' EPICS IOC:
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# Start or Stop the '''High Speed ROOT File''' by clicking the button underneath the title.
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# Once started, make sure the a new ROOT file is created and the File Size is increasing.
  
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; Reboot through CSS GUI:
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In very rare occasions, e.g. some one rebooted the AC DAQ server, the writer IOC needs to be restarted
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# In the '''Main Action Bar''', click '''Status of IOCs'''
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# In the '''IOC Status''' screen, click the '''Solenoid PXI Interface''' and choose '''View Status of IOC for Solenoid PXI Interface'''
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# In the '''IOC Diagnostics for Solenoid PXI''' screen, click '''Hard Reboot''' to restart the IOC.
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# Verify that the all the connections to the IOC are reestablished after the reboot: no pink boxes in the PXI screen.
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; Reboot using command lines;
 
; Reboot using command lines;
  
 
# Log onto '''gluon29''' using '''hdsys''' account
 
# Log onto '''gluon29''' using '''hdsys''' account
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# <code>telnet localhost 26060</code>
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# <code>telnet localhost 26064</code>
 
# Restart the IOC by keyboard combination '''Ctrl'''+'''X'''
 
# Restart the IOC by keyboard combination '''Ctrl'''+'''X'''
 
# Exit the IOC proServer by keyboard combination '''Ctrl'''+''']'''
 
# Exit the IOC proServer by keyboard combination '''Ctrl'''+''']'''

Revision as of 12:23, 17 October 2014

Notes from meetings with Accelerator Group

High Speed DAQ for the Active Collimator

Basic Information

List of EPICS PVs

Here are the waveform records with size of 8192, N9 are inner and N10 are outer:

  • iochdcol:BPM:N9:raw_XP
  • iochdcol:BPM:N9:raw_XM
  • iochdcol:BPM:N9:raw_YP
  • iochdcol:BPM:N9:raw_YM
  • iochdcol:BPM:N10:raw_XP
  • iochdcol:BPM:N10:raw_XM
  • iochdcol:BPM:N10:raw_YP
  • iochdcol:BPM:N10:raw_YM

These are the 16-bit count readings for individual plates that are always available and filtered down to ~1Hz (same order as above):

  • IOCHDCOL:VMICADC1_1
  • IOCHDCOL:VMICADC2_1
  • IOCHDCOL:VMICADC3_1
  • IOCHDCOL:VMICADC4_1
  • IOCHDCOL:VMICADC1_2
  • IOCHDCOL:VMICADC2_2
  • IOCHDCOL:VMICADC3_2
  • IOCHDCOL:VMICADC4_2

And the gains:

  • IPMHDACI_GainSub
  • IPMHDACI_GAINXP
  • IPMHDACI_GAINXM
  • IPMHDACI_GAINYP
  • IPMHDACI_GAINYM
  • IPMHDACO_GainSub
  • IPMHDACO_GAINXP
  • IPMHDACO_GAINXM
  • IPMHDACO_GAINYP
  • IPMHDACO_GAINYM

High Speed ROOT File Writer

An EPICS IOC server is set up on gluon29.jlab.org:26064 to write the raw waveform data to /gluonraid1/Users/ac directory on demand.

The control of this High Speed DAQ can be found in Hall-D's EPICS GUI:

  1. Open CSS EPICS Control following instructions
  2. From Main Action Bar, open Active Collimator GUI.
  3. Start or Stop the High Speed ROOT File by clicking the button underneath the title.
  4. Once started, make sure the a new ROOT file is created and the File Size is increasing.

In very rare occasions, e.g. some one rebooted the AC DAQ server, the writer IOC needs to be restarted

Reboot using command lines;
  1. Log onto gluon29 using hdsys account
  2. telnet localhost 26064
  3. Restart the IOC by keyboard combination Ctrl+X
  4. Exit the IOC proServer by keyboard combination Ctrl+]
  5. Exit the telnet by typing quit

Analyze High Speed Data

From Voltage Taps/PXI GUI
  1. Click the Analyzer button in the PXI Fast DAQ section.
From a Linux terminal
  1. log onto a gluon machine, e.g. gluon30.jlab.org, using account hdops: ssh -X hdops@gluon30
  2. enter the solenoid directory: cd ~\solenoid
  3. start the analyzer script: ./run
  4. in the analyzer, open a collection of raw data files or a processed ROOT file and start the analysis.
Retrieved from "https://halldweb1.jlab.org/wiki/index.php?title=Active_Collimator&oldid=61067"