What is I/O modules?

I/O (Input/Output) modules are hardware components that interface between a control system (like a PLC or computer) and the real world. They convert signals from sensors and other input devices into a format that the control system can understand, and they convert signals from the control system into a format that can control actuators, displays, and other output devices. Common use cases include industrial automation, process control, and data acquisition, allowing automated systems to monitor and control physical processes.