Keithley 2601B Reference Manual page 393

Series 2600B System SourceMeter® Instrument Reference Manual
Details
Set triggerMode to one of the following values:
Trigger mode values
triggerMode
digio.TRIG_BYPASS or 0
digio.TRIG_FALLING or 1
digio.TRIG_RISING or 2
digio.TRIG_EITHER or 3
digio.TRIG_SYNCHRONOUSA or 4
digio.TRIG_SYNCHRONOUS or 5
digio.TRIG_SYNCHRONOUSM or 6
digio.TRIG_RISINGA or 7
digio.TRIG_RISINGM or 8
When programmed to any mode except digio.TRIG_BYPASS, the output state of the I/O line is controlled by
the trigger logic, and the user-specified output state of the line is ignored.
Use of either digio.TRIG_SYNCHRONOUSA or digio.TRIG_SYNCHRONOUSM is preferred over
digio.TRIG_SYNCHRONOUS, because digio.TRIG_SYNCHRONOUS is provided for compatibility with the digital
I/O and TSP-Link triggering on older firmware.
To control the line state, set the mode to digio.TRIG_BYPASS and use the digio.writebit() and
digio.writeport() commands.
Example
digio.trigger[4].mode = 2
Also see
digio.trigger[N].clear()
digio.trigger[N].reset()
digio.writebit()
digio.writeport()
Sweep Operation
a
2600BS-901-01 Rev. B / May 2013
(on page 7-51)
(on page 7-55)
(on page 7-58)
(on page 7-59)
(on page 3-20)
Description
Allows direct control of the line.
Detects falling-edge triggers as input; asserts a TTL-low pulse for
output.
If the programmed state of the line is high, the
digio.TRIG_RISING mode behavior is similar to
digio.TRIG_RISINGA. If the programmed state of the line is low,
the digio.TRIG_RISING mode behavior is similar to
digio.TRIG_RISINGM. This setting should only be used if
necessary for compatibility with other Keithley Instruments products.
Detects rising- or falling-edge triggers as input. Asserts a TTL-low
pulse for output.
Detects the falling-edge input triggers and automatically latches and
drives the trigger line low. Asserting the output trigger releases the
latched line.
Detects the falling-edge input triggers and automatically latches and
drives the trigger line low. Asserts a TTL-low pulse as an output
trigger.
Detects rising-edge triggers as input. Asserts a TTL-low pulse for
output.
Detects rising-edge triggers as input. Asserts a TTL-low pulse for
output.
Asserts a TTL-high pulse for output. Input edge detection is not
possible in this mode.
Sets the trigger mode for I/O line 4 to
digio.TRIG_RISING.
Section 7: TSP command reference
7-53