V101 SNS Event Name Trigger Delay Delay   Comments
Num Event Event From To Gate
(Priority) Num   Trigger Gate  
0 0 ---- ---- ---- ----   Not Used
1 39 Extract 1 5050 ---- A2 60 Hz. Generated by V123S. Defines the end of the time-critical section of the timeline. Re-enables soft event delivery.
2 1 Cycle-Start 63 1 ---- A1 60 Hz. Generated by V123S. Defines the start of the time-critical section of the timeline.
3 63 Pre-Pulse ---- ---- ---- Sync Gen 60 Hz.
  Generated by V123S. Triggered from master reference generator. Disables soft event delivery until the next Extract cycle. Will be eliminated in next V123S Rev.
4 3 MPS-Reset ---- ---- ---- MPS Single-Shot.
AR Out Triggered by MPS Auto-Reset signal.
5 4 MPS-Latch ---- ---- ---- MPS Single-Shot.
Latch Out Triggered by MPS Latch signal.
6 43 RTDL-Xmit ---- ---- ---- A4 60 Hz.
  Triggered by timing master sequencer after all the RTDL frames for the next cycle have been loaded. Triggers the gate that starts the RTDL transmission.
7 44 RTDL-Valid 43 6 (Num RTDL Frames) + 1   A7 60 Hz. Signals the end of the RTDL transmission.
8 27 Source-On 1 2 Turns 3747 to 5046 Turns A8 Variable Rep-Rate. Controls ion source rep-rate only. Event location remains fixed. Gate width and delay are set in the MPS Master IOC (which generates the Ion Source Gate). Can be independent, or made coincident with the Warm-HPRF or Warm-LLRF events.
9 37 Beam-Ref 1 1050-2109 2939 B1 60 Hz.Event controls where the start of beam occurs.
10 36 Beam-On 37 2 2937 B2 Variable Rep-Rate. Event controls the beam rep-rate. Can be independent, or made coincident with Source-On, or Warm-LLRF. Event will be inhibited if the Kicker-Charge event did not fire on the previous cycle.
11 47 Diag-Fast 36 2 2935 B3 6 Hz. (Nominal) Always occurs on same cycle as Beam-On event. Actual rep-rate is determined by Beam-On rep-rate and the fact that the timing master sequencer guarantees that the there will always be at least 166.7 milliseconds between pulses. So, for example, if the Beam-On rep-rate is 10 Hz, the Diag-Fast rep-rate will actually be 5 Hz (since at 10 Hz there is only 100 milliseconds between pulses). Nominal rep-rate can be adjusted.
12 46 Diag-Slow 47 2 2933 B4 1 Hz. (Nominal) Always occurs on same cycle as Diag-Fast event. Actual rep-rate is determined by the actual Diag-Fast rep-rate and be the fact that the timing master sequencer guarantees that there will always be at least one second between pulses. Nominal rep-rate can be adjusted.
13 45 Diag-Demand 46 2 2931 B5 Single-Shot. Always occurs on same cycle as Diag-Slow and Diag-Fast events.
14 48 Diag-No-Beam 39 1 2931 B6 6 Hz. Not necessarily coincident with anything. This is a 6 Hz. event that can be used to test diagnostic triggers when there is no beam. Trigger and delay put the gate outside the beam acceleration/accumulation/extraction part of the machine cycle, so you are guaranteed not to have any beam. Rep-rate is the same as the Diag-Fast nominal rep-rate.
15 40 Kicker-Charge 39 12 1 B7 Variable Rep-Rate
Turns SubRev   Instructs the extraction kickers to begin charging. Must occur at least 13 milliseconds before extraction. Consequently, this gate must fire after the Extract event of the previous cycle.
      Rep-rate tied to Beam-On rep-rate. Occurs one cycle before Beam-On event. If beam is inhibited, this event will not be generated. Beam-On event will be inhibited if this event did not fire on the previous cycle.
16 38 End-Inject 1 5048 ---- B8 60 Hz.
Turns   Occurs 2 cycles before Extract. This event signals the fixed end point for all beam and RF gates.
17 28 Warm-HPRF 1 530-2109 2939 C1 Variable Rep-Rate.
Turns Turns   Controls the warm linac high-power RF gate width and rep-rate. Can be independent, or made coincident with the Source-On event.
18 29 Warm-LLRF 1 790-2109 2939 C2 Variable Rep-Rate.
Turns Turns   Controls the warm linac low-level RF gate width and rep-rate. Always occurs on the same cycle as the Warm-HPRF event.
19 30 Cold-HPRF 1 Oct-09 2939 C3 Variable Rep-Rate.
Turns Turns   Controls the super-conducting linac high-power RF gate width and rep-rate. Can be independent, or made coincident with the Source-On event or the Warm-HPRF event.
20 31 Cold-LLRF 1 270-2109 2939 C4 Variable Rep-Rate.
Turns Turns   Controls the super-conducting linac low-level RF gate width and rep-rate. Always occurs on the same cycle as the Cold-HPRF event.
21 50 RF-Sample 29 1329-4249 608 C5 Single-Shot.
Turns Turns   Triggers RF diagnostic gate. Always occurs on the same cycle as a Warm-LLRF event. Gate timing can be set to occur anywhere from 1000 turns before the start of the Warm-LLRF gate to 1900 turns after the start of the Warm-LLRF gate.
24 10 Spare 0 1 4 Turns 5044-width D2 Spare RF event -used only for testing and conditioning. Position is fixed and only rep-rate is controlled.
25 11 Spare 1 1 5 Turns 5043-width D3 Spare RF event -used only for testing and conditioning.
26 12 Spare 2 1 6 Turns 5042-width D4 Spare RF event -used only for testing and conditioning.
     
         
V101 SNS Event Name Trigger Delay Delay   Comments
Num Event Event From To Gate
(Priority) Num   Trigger Gate  
Soft 251 Compute-Rep-Rate         Signals that a new rep-rate pattern computation has begun in the timing master IOC.
Soft 252 New-Rep-Rate         Signals that new rep-rate patterns have been set in the timing master IOC.
Soft 253 MPS-Error-Reset         Reset error counters on all MPS chassis.
Soft 254 Util-Error-Reset         Reset error counters on all SNS Utility Modules.
Soft 255 super-cycle start         Marks the first cycle of a super cycle