Solution
The PXIe-4340 is not designed specifically for ratiometric measurements. The connections provided in the
PXIe-4340 User Manual are the official and recommended ones. It is important to follow these guidelines to ensure the optimal performance and compatibility of your sensor with the module.
In the forum
Measuring Position with a 5-Wire or 6-Wire LVDT/RVDT and 2-Channel PXIe-4340, you can find an example code and connection diagram that one could follow to achieve ratiometric measurements. Please note that this is not officially supported by NI and, depending on the connection type, you might need to use two channels.