Siemens SIMATIC S7-300 Module, DC24V powered, consists of CPU, power supply, digital & analogue I/O modules and communication modules with DIN rail mounting. It supports MPI, PROFIBUS-DP and PROFINET communication, compatible with ET200M remote I/O, programmed by STEP7 software, requires MMC memory card for program storage. High reliability and vibration resistance, widely used as spare parts for marine, power plant and industrial automation control systems.