Siemens Simatic S7-1200, Digital I/O module, 8DI/8DO, 2AProduct Overview The SIMATIC S7 1200 Digital I O Module SM 1223 provides robust AC input and relay output capabilities with 8 AC digital inputs and 8 relay outputs. Supporting both 120V and 230V AC inputs with 2A relay outputs, this module delivers reliable switching for industrial automation applications requiring high power load control and AC signal interfacing. Key Features 8 AC Digital Inputs + 8 Relay Outputs: Universal AC input voltage (120