SIMATIC S7-300, Digital Output SM 322, isolated, DC, 24V, 2A, 1x 20-pin. SIMATIC ET 200M is a modular and universally applicable peripheral system for control cabinets in IP20, which can be used both as central peripheral equipment for an S7-300 and in decentralized configurations with a PROFINET or PROFIBUS ET 200M interface module. Up to 12 I/O modules can be connected per station. The standardized design of all modules significantly simplifies logistics and spare parts management. The ET 200M is suitable for both standard and safety-oriented applications. As peripheral components interfacing with the process, up to 12 high-channel signals can be utilized, such as 64 digital inputs and function modules, as well as communication processors of the S7-300. Thus, the ET 200M also supports modules with extended payload data, such as HART modules with HART secondary variables. For easy wiring, the ET 200M offers the Fast Connect technology for tool-free connections in addition to conventional connection techniques.