Keithley SourceMeter 2600 Series Reference Manual page 296

12-22 Instrument Control Library
•
Remarks tmode
constants (see "Usage").
• When reading the trigger mode, it is returned as a number.
Details See "Controlling digital I/O
Example Sets the trigger mode for I/O line 4 to TRIG_RISING:
digio.trigger[4].mode = 2
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
• The trigger line is guaranteed to be asserted for at least the specified time, and it
Remarks
might be asserted slightly longer.
• 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
Sets pulsewidth for trigger line 4 to 20µs:
Example
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 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.
Details See "Controlling digital I/O
Also see digio.trigger[N].pulsewidth
Releases trigger line 4:
Example
digio.trigger[4].release()
2600S-901-01 Rev. A / May 2006
Series 2600 System SourceMeters Reference Manual
can be expressed as a number (1, 2, 3 or 5) or as one of the pre-defined
lines" in
N is a digital I/O trigger line: 1 to 14
Pulsewidth length (seconds).
lines" in
N is a digital I/O trigger line: 1 to 14
lines" in
Return to
Section 10.
-- Reads pulsewidth.
-- Writes pulsewidth.
Section 10.
Section 10.
Section 12 topics