Create a code module in a supported application development environment to interface with hardware driver DLLs and acquire data for TestStand.

NI does not recommend calling functions in hardware driver DLLs directly from TestStand. Instead, NI recommends that you create a code module from a supported application development environment (ADE) to interface with the driver and acquire data. You can then call this code module from a step in a TestStand sequence.

NI recommends this approach for the following reasons:

  • Writing a code module in a supported ADE provides access to driver wrapper code, such as the LabVIEW NI-DAQmx Library, which is fully documented and supported.
  • Using a code module can help modularize components of the test system and reduce unnecessary complexity in a TestStand sequence. For example, instead of creating multiple TestStand steps that interact directly with a hardware driver, you can create a single code module that configures the hardware, acquires measurement data, and returns a numeric result to TestStand for evaluation.