Siemens 6ES7235-0KD22-0XA8 Programmable Logic Controller

Siemens 6ES7235-0KD22-0XA8 is an EM 235 analog I/O module for SIMATIC S7-200 CN, designed to plug into the S7-22x CPU backplane to extend the controller's analog capabilities. It provides four analog inputs and one analog output with a 12‑bit converter and supports DC signal ranges of +/-10 V for both input and output. The module is intended for use with S7‑22X CPUs only and is powered from the S7‑200 CN backplane's 5 V DC supply. These specifications make it suitable for compact automation tasks that require moderate‑precision voltage‑based sensing and actuation in small to mid‑size control systems.