How to Configure an NI SMU to Trigger Sourcing and Measurement at the Same Time

Updated Feb 13, 2026

This article outlines the steps to configure an NI SMU to trigger sourcing and measurement at the same time.

To trigger sourcing and measurement at the same time, the required trigger configuration depends on the SMU’s source mode:

1. Single Point Source Mode
a. Set Measurement:Advanced:Measure When property to On Measure Trigger.

b. Configure both the Source Trigger and Measure Trigger to use the same external trigger source.

c. The diagram below illustrate the niDCPower functions that should be included when programming this behavior. If you are using a programming language other than LabVIEW, refer to the niDCPower User Manual to identify the equivalent functions.


2. Sequence Source Mode
a. Set Measurement:Advanced:Measure When property to On Measure Trigger.

b. Configure the Start Trigger to use the external trigger source you want.

Note: The Source Trigger and Source Advanced Trigger are not evaluated during the first iteration of either loop. This means the sourcing operation begins according to the Start Trigger.

c. Configure the Measure Trigger to be driven by the Start Trigger.

Note: A common mistake is setting the Measure Trigger to the same external trigger source used for the Start Trigger. Since the Measure Trigger only becomes ready after the Start Trigger has already occurred, using the same external trigger source causes the Measure Trigger to miss the event.

d. The diagram below illustrate the niDCPower functions that should be included when programming this behavior.