Keithley 2657A User Manual

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 3: Functions and features
2657A-901-01 Rev. B/December 2012 3-59
Figure 55: Either edge input trigger
Output characteristics:
• In addition to trigger events from other trigger objects, the digio.trigger[N].assert() and
tsplink.trigger[N].assert() commands generate a low pulse that is similar to the falling
edge trigger mode.
• An action overrun occurs if the physical line state is low while a stimulus event occurs.
Figure 56: Either edge output trigger
Understanding synchronous triggering modes
Use the synchronous triggering modes to implement bidirectional triggering, to wait for one node, or
to wait for a collection of nodes to complete all triggered actions.
All non-Keithley instrumentation must have a trigger mode that functions similar to the SynchronousA
or SynchronousM trigger modes.
To use synchronous triggering, configure the triggering master to SynchronousM trigger mode or the
non-Keithley equivalent. Configure all other nodes in the test system to SynchronousA trigger mode
or a non-Keithley equivalent.
External Drive
Internal Drive
Physical Line State
Event
Stimulus Event
Action Overrun
Input Trigger
Pulse Duration
External Drive
Internal Drive
Physical Line State
Event
Stimulus Event
Action Overrun
Output Trigger

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English