Source Modes

The PXIe-4112 channels can generate voltage and current in Single Point or Sequence source mode.

Within Single Point and Sequence source mode, you can output the following:

  • DC voltage
  • DC current

The Source Mode With Channels function defines the source mode the PXIe-4112 channels are operating in.

Single Point Source Mode

In Single Point source mode, the source unit applies a single source configuration when it enters the Running state.

You can then update the source configuration dynamically (when a channel is in the Running state) by modifying those properties that support dynamic reconfiguration.

Sequence Source Mode

In Sequence source mode, the source unit steps through a predetermined set of source configurations.

Sequence source mode on the PXIe-4112 only supports simple sequence, which allows you to define a series of voltage or current levels and source delays for a channel using the Set Sequence function.

A channel can step through a sequence without any interaction between the host system and NI-DCPower. Because the host system is not involved in executing the changes between steps of the sequence, the changes between steps in a sequence are deterministic.

Simple Sequences

You can use simple sequencing in Sequence source mode.

Create by setting the source mode to Sequence and using the Set Sequence function.

Control the initial state by manually configuring the channel(s) before calling the Set Sequence function

Note You cannot import and export sequences in simple sequencing.

Refer to the NI-DCPower examples in your application development environment to see how you can program with simple sequences.