We are building a test device for testing our cRIO system. The test device sends a variety of physical voltages and currents to the inputs of cRIO modules, and checks the resulting data produced by the embedded software. This is of course straightforward if the modules are voltage-input and current-input. However, one of the modules is a cRIO-9217 for sensing RTDs. Since we don't have a device that can programmically deliver different physical resistances, we are looking for a way to wire voltage or current into the terminals of the cRIO-9217 that would emulate a resistance. Do you have suggestions on how to do this?