Section 9: TSP command reference Series 2600B System SourceMeter® instrument Reference Manual
9-58 2600BS-901-01 Rev. F/August 2021
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
Sets the trigger mode for I/O line 4 to digio.TRIG_RISING.
Also see
digio.trigger[N].clear() (on page 9-56)
digio.trigger[N].reset() (on page 9-60)
digio.writebit() (on page 9-63)
digio.writeport() (on page 9-64)
Sweep operation (on page 2-51)
digio.trigger[N].overrun
This attribute returns the event detector overrun status. This command is not available on the 2604B, 2614B,
or 2634B.
Instrument reset
Digital I/O trigger N clear
Digital I/O trigger N reset
Recall setup
Usage
overrun = digio.trigger[N].overrun
Trigger overrun state (true or false)
Digital I/O trigger line (1 to 14)
Details
If this is true, 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 detector that is monitoring
the event.
Example
overrun = digio.trigger[1].overrun
print(overrun)
If there is no trigger overrun, the following text is output:
false
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