Triggering
Channel trigger/qualifier
1 fully independent per channel either trigger or qualifier
Pre
-
and post
-
trigger length
0 to full memory
Maximum trigger rate
400 triggers per second
Maximum delayed trigger
1000 seconds after a trigger occurred
Manual trigger (Software)
Supported
External Trigger In
Selection per card
User selectable On/Off
Trigger in edge
Rising/Falling mainframe selectable, identical for all cards
Minimum pulse width
500 ns
Trigger in delay
±
1 µs + maximum 1 sample period (Identical for decimal and binary time base)
Send to external trigger out
User can select to forward External Trigger In to the External Trigger Out BNC
External Trigger Out
Selection per card
User selectable On/Off
Trigger out level
High/Low/Hold High; mainframe selectable, identical for all cards
Trigger out pulse width
High/Low: 12.8 µs
Hold High: Active from first mainframe trigger to end of recording
Pulse width created by mainframe; see mainframe datasheet for details
Trigger out delay
Selectable (180 μs to 516 μs)
±
1 µs + maximum 1 sample period using decimal time base
Selectable (176 μs to 504 μs)
±
1 µs + maximum 1 sample period using binary time base
Default 516(504) μs for decimal (binary) time base, to be compatible with standard behavior.
Minimum selectable delay is the smallest delay available for all acquisition cards used within
the mainframe
Cross channel triggering
Measurement channels
Logical OR of triggers from all measured signals
Logical AND of qualifiers from all measured signals
Calculated channels
Logical OR of triggers from all calculated signals (RTC and RT
-
FDB)
Logical AND of qualifiers from all calculated signals (RTC and RT
-
FDB)
Analog channel trigger levels
Levels
Maximum 2 level detectors
Resolution
16 bit (0.0015%); for each level
Direction
Rising/Falling; single direction control for both levels based on selected mode
Hysteresis
0.1 to 100% of Full Scale; defines the trigger sensitivity
Analog channel trigger modes
Basic
POS or NEG crossing; single level
Dual level
One POS and one NEG crossing; two individual levels, logical OR
Analog channel qualifier modes
Basic
Above or below level check. Enable/Disable trigger with single level
Dual (level)
Outside or within bounds check. Enable/Disable trigger with dual level
Event channel trigger
(1)
Event channels
Individual event trigger per event channel
Levels
Trigger on rising edge or trigger on falling edge
Qualifiers
Active High or Active Low for every event channel
(1)
Only if supported by mainframe
GEN3i
694
I3763-3.1 en HBM: public
