Siemens 6ES72110BA200XB0 Programmable Logic Controller

Siemens 6ES72110BA200XB0 is a SIMATIC S7-200 CPU 221 compact controller designed for compact, stand-alone automation tasks with a small footprint. It provides six digital inputs (DC) and four digital outputs (relay), enabling straightforward control of small machines and processes from a single compact controller. The unit includes 4 KB of program memory and 2 KB of data memory, supporting compact control logic and data handling for sequencing and monitoring tasks in its small package. As part of the SIMATIC S7-200 family, the CPU 221 compact unit delivers a simple, reliable solution for projects that require deterministic I/O behavior in a limited-space environment. The device is identified by the exact part number 6ES72110BA200XB0, which ensures precise ordering and cataloging within Siemens' S7-200 ecosystem. Each specification—six DC inputs, four relay outputs, and the 4 KB/2 KB memory footprint—defines the scope of automation capacity this model can handle without upgrading to larger PLC platforms.