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Martin Frank, 01/16/2014 05:10 PM


NDOS Shifter Instructions

Starting the Trigger

The following instructions show how to start the trigger after you have started a run.

1. The DDTManager should be in the list of managers of the DAQApplicationManager:

2. You should see the DDT Manager with several buttons in pink (check the whole desktop, this window sometimes hides out of view):

3. Click the "Start Group" button to start all of the processes and when they are all running it should look like this:

4. If all is well, you should see the DDT Scalars updating in the Trigger Scalars window:

5. When you end a run or when a run crashes, please make sure that you stop all of the trigger processes (see next section).

6. Note that the data-driven triggers record shorter time windows, so you will see very clean events in the Event Display.

Stopping the Trigger

Make sure that you stop all of the processes after you end a run or after a run crashed!

1. Click the "Stop Group" button and wait until everything is pink (not running).

Recovering a Trigger

Occasionally a trigger process might die, so you can recover it as follows:

1. The overview will indicate this with a bit of pink in the Group button (Group 05 here), so double-click it to see more details:

2. Send an email to telling us which trigger process died. For example, trigger process DDT-6-4 died here:

3. Right-click on the dead process and click "Start Process":

4. Everything should be green again. You can return to the Overview by clicking on the orange "Back" button.

5. If the process dies more than twice in an hour, do not restart it again, but notify us via email.