User manual

Series 3700 System Switch/Multimeter Reference Manual Section 8: Scanning
3700S-901-01 Rev. C / July 2008 8-19
Trigger mode
Output
Input
Notes
Unasserted
Asserted
Detects
Rising A
High
Low
Rising
RisingM
Low
High
None
Synchronous
High
latching
Low
Falling
Behaves similar to
SynchronousA
Trigger overrun detection is
disabled
To mirror the SynchronousA
trigger mode, set the pulse
duration to 1µs or any small
nonzero value
SynchronousA
High
latching
High
Falling
Ignores the pulse duration
SynchronousM
High
Low
Rising
Each trigger mode controls the input trigger detection and output trigger
generation. The input detector monitors for and detects all edges, even if the
node that generates the output trigger causes the edge.
A trigger overrun generates if an input trigger is received before the previous
input trigger processes. To determine if a trigger overrun has occurred,
reference the trigger overrun attributes.
For additional information on the hardware trigger modes, see Instrument
Control Library (ICL) (on page 12-1).
NOTE To have direct control of the line state, use the Bypass trigger mode.