Timing and spills¶

Running the Spill Server¶

On a DAQ machine, set up the software:

setup_online -z 1 --opt

and then run the script to start the spill server:

./home/novadaq/testRel_TBOps_20180821/DAQOperationsTools/script/startBeamSpillBackBoneTB.sh

(this is for a specific Ops release).

This starts the NssApp on the TDU and the Spill Forwarder on the test-trigger machine.

Logs are placed in

/daqlogs/NovaSpillServer/NssTDUApp/

TDU Spill numbering¶

The various spill types the TDUs see are listed below.

1: BNB (evt 0x41b) - Beamline trigger
4: AccelOneHztclk (evt 0x18f)
7: SuperCycle (evt 0x100)
10: TBSpill (evt 0x139) - Full 4.2s spill

IRM Outputs¶

The TCLK outputs for each of our IRM channels (2-26-2019) are as follows:

• 0: $00 (RESET)
• 1: $8F (1Hz)
• 2: $30 (switchyard reset for long spill extraction)
• 3: $36 (switchyard post-beam)
• 4: $31 (switchyard reset for extracted beam)
• 5: Software triggered
• 6: $00+delay (END READOUT)
• 7: $00+delay (END READOUT)