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Section 3: Functions and features Model 2651A High Power System SourceMeter® Instrument Reference Manual

3-64 2651A-901-01 Rev. A / March 2011

Figure 63: Synchronous input trigger

External Drive

Internal Drive

Physical Line State

Event

Stimulus Event

Action Overrun

Input Trigger

Output characteristics:

• In addition to trigger events from other trigger objects, the digio.trigger[N].assert() and

tsplink.trigger[N].assert() functions generate a low pulse for the programmed pulse

duration if the line is latched low, a falling edge does not occur.

• A normal falling edge pulse generates when the internal drive is not latched low and the

digio.trigger[N].assert() and tsplink.trigger[N].assert() functions are issued.

• To mirror the SynchronousA trigger mode, set the pulse width to 1 μs or any small nonzero value.

• Action overruns are disabled.

Figure 64: Synchronous output trigger

Pulse Width Pulse Width

Output Triggers