Converting NI 9231 Data (FPGA Interface)

Set the Calibration Mode to Calibrated in the C Series Module Properties dialog box for the NI 9231 if you want the FPGA I/O Node to return calibrated, fixed-point data from the module.

Set the Calibration Mode to Raw if you want the FPGA I/O Node to return calibrated, binary data from the module. If you set the Calibration Mode to Raw, convert the binary values to engineering units. Convert these values in the host VI.

You can use the following equations in the host VI to convert binary voltage values to volts:

Volts = Binary Value × 610714.8 pV/LSB