Siemens Analog input module, AI 4 x I 2, 4-wire, 16 bitProduct Overview SIMATIC ET 200SP, ANALOG INPUT MODULE, AI 4XI 2 4 WIRE STANDARD, PACKING UNIT: 1 PIECE, FITS TO BU TYPE A0, A1, COLOR CODE CC03, MODULE DIAGNOSIS, 16BIT, + 0,3% This reliable analog input module is designed for the SIMATIC ET 200SP distributed I O system, providing standard current measurement capabilities. With 4 analog inputs supporting 2 wire or 4 wire configurations, it delivers consistent performance for industrial automation