Model 2657A High Power System SourceMeter® Instrument Reference Manual
Section 3: Functions and features
2657A-901-01 Rev. B/December 2012
3-33
Trigger events are identified by means of an event ID. The following table describes the trigger event
IDs.
Trigger event IDs*
Event ID
Event description
smua.trigger.SWEEPING_EVENT_ID
Occurs when the source-measure unit (SMU)
transitions from the idle state to the arm layer of the
trigger model
smua.trigger.ARMED_EVENT_ID
Occurs when the SMU moves from the arm layer to
the trigger layer of the trigger model
smua.trigger.SOURCE_COMPLETE_EVENT_ID
Occurs when the SMU completes a source action
smua.trigger.MEASURE_COMPLETE_EVENT_ID
Occurs when the SMU completes a measure action
smua.trigger.PULSE_COMPLETE_EVENT_ID
Occurs when the SMU completes a pulse
smua.trigger.SWEEP_COMPLETE_EVENT_ID
Occurs when the SMU completes a sweep
smua.trigger.IDLE_EVENT_ID
Occurs when the SMU returns to the idle state
digio.trigger[
N
].EVENT_ID
Occurs when an edge is detected on a digital I/O line
tsplink.trigger[
N
].EVENT_ID
Occurs when an edge is detected on a TSP-Link line
lan.trigger[
N
].EVENT_ID
Occurs when the appropriate LXI trigger packet is
received on LAN trigger object
N
display.trigger.EVENT_ID
Occurs when the TRIG key on the front panel is
pressed
trigger.EVENT_ID
Occurs when a *TRG command is received on the
remote interface
GPIB only: Occurs when a GET bus command is
received
VXI-11 only: Occurs with the VXI-11 command
device_trigger
; reference the VXI-11 standard
for additional details on the device trigger operation
trigger.blender[
N
].EVENT_ID
Occurs after a collection of events is detected
trigger.timer[
N
].EVENT_ID
Occurs when a delay expires
* Use the name of the trigger event ID to set the stimulus value rather than the numeric value. Using the name
makes the code compatible for future upgrades (for example, if the numeric values must change when
enhancements are added to the instrument).
Using the remote trigger model
The source-measure unit (SMU) in the Model 2657A has a remote trigger model that supports a wide
range of triggering features for source sweeps, triggered measurements, and pulse actions.
Measurements using the trigger model can be made synchronously with sourcing actions, or they can
be made asynchronously. The following figures graphically illustrate both modes of the remote trigger
model.
Summary of Contents for 2657A
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