2-channel analog input for resistance sensors Pt100/RTD. The analog input module allows for the direct connection of Pt resistance sensors. The connection can be made using either 2-wire or 3-wire technology. The module handles linearization across the entire temperature range. A short circuit or interruption of the sensor line, as well as an out-of-range condition, is indicated by a red error LED. The green LED indicates operational readiness and trouble-free communication with the bus coupler. The shield connection is directly routed to the mounting rail.