The 6AG1231-5PF30-2XB0: This S7-1200 analog input module reads eight resistance thermometers across Pt100, Ni100, Cu10, and sixteen other RTD curves per the datasheet. The measurement principle is integrating, with a cold junction compensation accuracy of ±1,5 °C on the reference junction. Diagnostic alarms and wire-break detection are included. Ambient limits span -40 to 70 °C, so the module suits outdoor or unheated enclosures within that range.
Housing and power
The plastic housing measures 70 x 100 x 75 mm, matching the standard S7-1200 footprint. It clips onto a 35 mm DIN rail and connects to the backplane via the integrated bus connector. Supply is 24 V DC; typical power draw is 1.5 W. IP20 protection means the module is intended for enclosed control cabinets with no washdown exposure.