Keithley 2601 Reference Manual page 281

Series 2600 System SourceMeter® Instruments Reference Manual
digio.trigger[N].overrun
Attribute Use this attribute to read the trigger overrun status.
Usage
overrun = digio.trigger[N].overrun
overrun
Remarks • A read only attribute.
• Indicates an event was ignored because the event detector was in the detect state when
the event was detected.
digio.trigger[N].pulsewidth
Attribute The length of time that the trigger line will be asserted for output triggers.
Usage
width = digio.trigger[N].pulsewidth
digio.trigger[N].pulsewidth = width
width
Remarks • Setting pulsewidth to 0 (seconds) asserts the trigger indefinitely.
• The default pulsewidth time is 10µs.
Details See "Controlling digital I/O
Also see digio.trigger[N].release
--
Example Sets the pulse width 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()
Remarks Releases a trigger that was asserted with an indefinite pulse width, as well as a trigger that
was latched in response to receiving a synchronous mode trigger.
Details See "Controlling digital I/O
Also see digio.trigger[N].pulsewidth
Example Releases trigger line 4
digio.trigger[4].release()
digio.trigger[N].wait
Function Waits for a trigger
Usage
triggered = digio.trigger[N].wait(timeout)
timeout
triggered
Remarks This function waits up to the timeout value in seconds for an input trigger. If one or more
trigger events are detected since the last t
digio.trigger[N].clear
for a trigger with this function, the event detector is automatically reset and rearmed. This is
true regardless of the number of events detected.
Details See "Controlling digital I/O
Also see digio.trigger[N].clear
2600S-901-01 Rev. C / January 2008
Replace N with the number of the digital I/O trigger line: 1 to
14
.
The trigger overrun state
Replace N with the number of the digital I/O trigger line: 1 to
14.
lines" in Section 10.
Replace N with the number of the digital I/O trigger line: 1 to
14.
lines" in Section 10.
:
Replace N with the number of the digital I/O trigger line: 1 to
14.
.
Specifies the time-out value in seconds.
A customized variable that stores the value true if a
trigger is detected, or false if a trigger is not
detected during the time-out period.
ime
was
called, this function immediately returns. After waiting
lines" in Section 10.
Return to Section Topics
Reads pulse width.
Writes pulse width.
The pulse width length (seconds).
:
.
digio.trigger[N].wait
Section 12: Instrument Control Library
or
12-21