Siemens 6ES7 216-2AD23-0XB8 CPU Processor Module

The Siemens 6ES7-216-2AD23-0XB8 is a CPU module for the SIMATIC S7-200 CN family (CPU 226) configured as DC/DC/DC power, offering 24 digital inputs and 16 digital outputs, plus an integrated PPI interface for serial communication with other PLCs and devices. This compact processor runs on a standard 24 V DC supply and is designed for small-to-mid-size automation projects that require straightforward logic, timing, and I/O control within the S7-200 ecosystem. The AD23 I/O allocation (24 DI / 16 DO) is encoded in the part number, while the CN designation confirms the presence of the PPI interface for host controller connections and programming workflows. Typical applications include basic machine control and sequencing tasks in compact automation panels where reliable CPU performance and space efficiency are priorities. The 6ES7-216-2AD23-0XB8 SKU is commonly encountered in repairs, replacements, or retrofits for legacy S7-200 installations and can be integrated with compatible expansion modules to scale I/O as needed.