DAQ Troubleshooting

The DAQ is DEAD!

  • Log on to a Windows console in the online network (LHCb domain).
  • Open the following directory: G:\online\ecs\Shortcuts\VELO
  • Double click on VEECS1_UI_DEN. The following panel will pop up:

VeloTopDEN.JPG

  • Click on the FSM tab:

VeloTopDEN_FSM.JPG

  • Expand the hierarchy: VEECS1>>VELO, right-click on VELO_DAQ and choose "Start/Restart tree":

VeloTopDEN_FSM_restart.JPG

When I configure, the hardware settings are not in agreement with the recipe used!

This may happen if the Reset command was previously sent with the option UNCHANGED: as explained in the DAQ Reset section, in that case the hardware is not touched and the state is just changed from READY to NOT_READY. When the user sends again the Configure command, the software checks whether the hw is already configured and if it is, it just changes its state back to READY. Therefore, the hardware settings correspond to the last used recipe. The described behaviour is requested to prevent a continous loading and unloading of the Beetles when the user sends the commands Configure/Reset from the VELO top level. To recover, please follow these steps:
  • Configure once the system (no matter with which recipe)
  • Reset the system choosing CB_Conf=UNLOAD and Beetle_Conf=UNLOAD
  • Configure the system with the proper recipe.

When I configure, the DAQ goes in ERROR!

  • Make sure that the corresponding LV channels are READY. If not follow the instructions on the Low Voltage System.
  • Log on to a Windows console in the online network (LHCb domain).
  • Open the following directory: G:\online\ecs\Shortcuts\VELO
  • Double click on VEECS1_UI_FSM. The following panel will pop up:
VeloTopOperate.JPG

  • Right click on VELO to get the VELO ECS top panel. In this panel you find the list of sub-systems: if the VELO_DAQ sub-system is not included, click on the corresponding padlock and choose take.
  • Click on VELO_DAQ --> VELOA(C)_DAQ to get the DAQ panel for the selected half. If the VELOA(C)_DAQ sub-system is not included, click on the corresponding padlock and choose take.
  • Check which one of the listed Control Unit is in error.
  • Only the VELOA(C)_DAQ_TE system is in ERROR: please consult the Tell1 troubleshooting.
  • The VELOA(C)_DAQ_CB and/or one of the VELOA_DAQ_M# are in ERROR: please check that the Specs Server and the DNS node are still running: click on one of the Velo Module (one of the coloured buttons on the right side of the panel) and check that the specs node (vedaqa(c)01) and the DNS node (ecs01) are both green.
  • The specs node is red: you have to restart the specs server.
  • The DNS node is red: contact the Online experts.
  • The Specs Server and the DNS node are both green: try to re-subscribe the hardware to the Specs Server.

How do I restart the Specs Server?

  • Log on to a Windows console in the online network (LHCb domain).
  • Start Exceed.
  • Start putty and log on vedaqa(c)01.
  • Browse to /group/velo/pvss/fwComponents_VEDAQA(C)CB/bin/
  • Run ./Dns
  • Run ./SpecsServer

How do I re-subscribe the hardware to the Specs Server?

  • Log on to a Windows console in the online network (LHCb domain).
  • Start Exceed.
  • Start putty and log on vedaqa(c)01.
  • Browse to /group/velo/pvss/localManagers/VEDAQA(C)CB/
  • Run ./Hw.sh
  • The following panel will pop-up:

HwType.JPG

  • Go to the ADVANCED tab and click on "Clear ALL HW Subscriptions":

HwAdvanced.JPG

  • Go back to the TYPE tab.
  • Select the VeloControlBoard and click on "Subscribe"; a panel will pop-up asking if you want to subscribe all the registers of hardwares of type VeloControlBoard: say yes.
  • Select the VeloHybrid and click on "Subscribe"; a panel will pop-up asking if you want to subscribe all the registers of hardwares of type VeloHybrid: say yes.

-- StefanoDeCapua - 08 Aug 2008

Topic attachments
I Attachment History Action Size Date Who Comment
JPEGjpg HwAdvanced.JPG r2 r1 manage 42.2 K 2008-08-09 - 00:05 StefanoDeCapua  
JPEGjpg HwType.JPG r1 manage 63.2 K 2008-08-08 - 23:51 StefanoDeCapua  
JPEGjpg VeloTopDEN.JPG r1 manage 36.6 K 2008-08-08 - 23:00 StefanoDeCapua  
JPEGjpg VeloTopDEN_FSM.JPG r1 manage 26.2 K 2008-08-08 - 23:00 StefanoDeCapua  
JPEGjpg VeloTopDEN_FSM_restart.JPG r1 manage 40.4 K 2008-08-08 - 23:01 StefanoDeCapua  
JPEGjpg VeloTopOperate.JPG r1 manage 17.0 K 2008-08-08 - 23:51 StefanoDeCapua  
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Topic revision: r1 - 2008-08-09 - StefanoDeCapua
 
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