Event Blenders - Keithley 2651A Reference Manual

Model 2651A High Power System SourceMeter® Instrument Reference Manual
Stimulus input:
trigger.timer[1].stimulus
Stimulus input:
smua.trigger.source.stimulus
Legend:
= Trigger object
= Trigger events
= External output trigger
= Stimulus input
= External input trigger

Event blenders

The ability to combine trigger events that occur at different times is known as event blending. An
event blender can be used to wait for a specific input trigger or to wait for up to four input triggers to
occur before responding with an output event.
There are four event blenders that can be used to monitor and respond to multiple stimulus events.
Each event blender can be configured to monitor a maximum of four different trigger events.
Event blender modes
Event blenders can be used to perform logical AND and logical OR functions on trigger events. For
example, trigger events can be triggered when either a manual trigger or external input trigger is
detected.
•
Or: Generates an event when an event is detected on any one of the four stimulus inputs
•
And: Generates an event when an event is detected on all of the assigned stimulus inputs
Set the trigger.blender[N].orenable attribute to configure the event blender mode. Setting
the attribute to true enables OR mode; setting the attribute to false enables AND mode.
2651A-901-01 Rev. A / March 2011
Figure 51: Pulse train triggering
ulus
Timer #1
(pulse period)
SMU A
Trigger event:
smua.trigger.SWEEPING_EVENT_ID
Section 3: Functions and features
Trigger event:
trigger.timer[1].EVENT_ID
Timer #2
(pulse width)
Trigger event:
trigger.timer[2].EVENT_ID
Stimulus input:
trigger.timer[2].stimulus
Stimulus input:
smua.trigger.endpulse.stimulus
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