The Helmholz GmbH Analog-input-module for the modular fieldbus IO system TB20 and the module has 2 to 4 analog inputs for RTD resistance measurements, depending on whether the wiring is 2 or 3 or 4 wire also has 2/4 inputs for measuring resistance, electrically isolated from the backplane bus.
Diagnostic messages Wire break detection A bi-color LED indicates the module operating status and any malfunctions
