User manual

Section 13: Instrument Control Library (ICL) Series 3700 System Switch/Multimeter Reference Manual
13-90 3700S-901-01 Rev. C / July 2008
digio.trigger[N].overrun
Attribute
Event detector overrun status.
Usage
overrun = digio.trigger[N].overrun
overrun: Trigger overrun state.
N: Digital I/O trigger line: 1 to 14
Remarks
This attribute is a read-only attribute that indicates if an event was ignored because
the event detector was already in the detected state when the event occurred. This is
an indication of the state of the event detector built into the line itself. It does not
indicate if an overrun occurred in any other part of the trigger model or in any other
construct that is monitoring the event. It also is not an indication of an output trigger
overrun.
Example
overrun = digio.trigger[1].overrun
print(overrun) false
digio.trigger[N].pulsewidth
Attribute
The length of time that the trigger line will be asserted for output triggers. N is a digital
I/O trigger line: 1 to 14
Usage
To read pulse width:
width = digio.trigger[N].pulsewidth
To write pulse width:
digio.trigger[N].pulsewidth = width
pulsewidth: length in s (seconds).
N: Digital I/O trigger line: 1 to 14
Remarks
The trigger line is guaranteed to be asserted for at least the specified time, and it
might be asserted slightly longer.
Setting pulsewidth to 0 (seconds) asserts the trigger indefinitely.
The default pulsewidth time is 10µs for digio lines 1 through 9, and 20µs for digio
lines 10 through 14
Also see
See digio.trigger[N].release() (on page 13-90).
Example
Sets pulsewidth for trigger line 4 to 20µs:
digio.trigger[4].pulsewidth = 20e-6
digio.trigger[N].release()
Function
Releases an indefinite length or latched trigger.
Usage
digio.trigger[N].release()
N: Digital I/O trigger line: 1 to 14
Remarks
Releases a trigger that was asserted with an indefinite pulsewidth, as well as a trigger
that was asserted in response to receiving a synchronous mode trigger. Only the
specified trigger line (N) is affected.
Also see
digio.trigger[N].pulsewidth (on page 13-90)