Siemens 6ES7312-1AE13-0AB0 SIMATIC S7-300 CPU Module

Siemens 6ES7312-1AE13-0AB0 SIMATIC S7-300 CPU Module is a CPU 312 central processing unit designed for the SIMATIC S7-300 family, providing an MPI interface for both programming and communication with other MPI-enabled modules within an automation rack. It ships with an integrated 24 V DC power supply and 32 KB of working memory, enabling compact, self-contained control tasks, while a Micro Memory Card is required to load and transfer programs to and from the module, as is common in S7-300 deployments. The part number 6ES7312-1AE13-0AB0 uniquely identifies this exact CPU 312 model, which serves as the control core in small to mid-size S7-300 installations, coordinating logic, timers, and data handling across connected I/O devices via the MPI network. Because it is an MPI-based CPU, it integrates with other S7-300 components and programming tools that use the MPI protocol, offering a straightforward path to expand an automation system with additional CPUs, I/O modules, or communications interfaces without changing the core architecture.