8-Bit, 10-Channel PXI Programmable Resistor Module—The PXI‑2720 is a test module that replicates the behavior of resistance-based inputs and outputs such as potentiometers, resistance temperature detectors (RTDs), voltage dividers, and bridge elements. The PXI‑2720 programmatically controls a series of relays to vary the resistance across each channel of an I/O connector. This function is well suited for simulating environmental conditions in hardware‑in‑the‑loop (HIL) validation. The software provides a simple user interface that accepts inputs in units of temperature or resistance and configures the resistance across each channel.