Siemens 6ES7614-1AH00-0AB3 Central Processing Unit

Siemens 6ES7614-1AH00-0AB3 is a CPU 614 central processing unit for the SIMATIC S7-300 family, serving as the main processor module in a PLC rack. It provides 128 KB of memory and operates from a 24 V DC supply with a typical current draw of 0.7 A. As a CPU 614, this module is engineered to execute the control logic of SIMATIC S7-300 projects, coordinating program blocks, data handling, I/O interfacing, and communications within the system. The unit is designed for integration into existing S7-300 networks and can function as the computation core for standalone machines or as part of multi‑module control configurations, supporting ladder logic and other PLC programming languages used in Siemens environments. With its 24 V DC power requirement and 128 KB memory, it fits into standard S7-300 central rack configurations and relies on its memory to store runtime data, program blocks, and variables needed for reliable machine control.