What is IO modules?

IO modules (Input/Output modules) are hardware components that interface between a control system (like a PLC or computer) and the real-world devices it controls and monitors. They convert signals from sensors and actuators into a format understandable by the control system and vice-versa. Common uses include reading sensor data (temperature, pressure, level), controlling actuators (valves, motors, pumps), and providing digital signals for status indication. They are essential for connecting digital control systems to physical processes.