Operating the VELO DAQ

Introduction

The VELO DAQ project controls the whole Velo DAQ: Control Boards, Beetle chips and Tell1s. The DAQ project is made of four different PVSS projects running on dedicated machines:

• VEDAQACB: this project controls the Control Boards and the Beetle chips of the Velo A side; it runs on vedaqa01 under the velo_user account.
• VEDAQCCB: this project controls the Control Boards and the Beetle chips of the Velo C side; it runs on vedaqc01 under the velo_user account.
• VEDAQATE: this project controls the Tell1s of the Velo A side; it runs on vedaqa02 under the velo_user account.
• VEDAQCTE: this project controls the Tell1s of the Velo C side; it runs on vedaqc02 under the velo_user account.

How to Configure the whole VELO DAQ

• Make sure that the LV system is 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:

• 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 to make sure that both halves are enabled or that the half you don't want to use is disabled: in order to enable (disable) one half, just click on the red cross (green tickmark) and choose "Enable" ("Disable").
• Configuration of the whole VELO DAQ: click on the VELO_DAQ button and choose Configure; a pop-up panel will ask you what activity you want to run (e.g. PHYSICS, PHYSICSNTP,...).
• Configuration of a single VELO DAQ half: click on the VELOA(C)_DAQ button and choose Configure; a pop-up panel will ask you what activity you want to run (e.g. PHYSICS, PHYSICSNTP,...).

How to Configure the DAQ of a single module

• 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:

• 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.

How to Reset the whole VELO DAQ

• 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:

• 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.
• This action MUST be taken for the two halves separately: click on VELO_DAQ to get the panel with VELOA_DAQ and VELOC_DAQ. Make sure that both halves are enabled or that the half you want to use is enabled: in order to enable one half, just click on the red cross and choose "Enable".
• Click on the VELOA(C)_DAQ button and choose Reset; a pop-up panel will ask you which options you want: the defaull options are CB_Conf=UNCHANGED and Beetle_Conf=UNCHANGED. If the Reset command is sent with these values, the DAQ state will change to NOT_READY but the hardware will not be touched! If you want to really reset the hardware, than choose CB_Conf=UNLOAD and Beetle_Conf=UNLOAD: in this way the DAQ state will change to NOT_READY and the hardware will be fully unloaded.

How to Reset the DAQ of a single module

• 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:

• 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.

Troubleshooting

Some hints here!

-- StefanoDeCapua - 08 Aug 2008