What are remote input and output modules?

Answer 1

Remote input and output modules are devices used in industrial automation systems to facilitate communication between field devices (like sensors and actuators) and a central control system, such as a programmable logic controller (PLC). These modules allow for the extension of input and output capabilities beyond the physical location of the controller, enabling devices to be placed farther away while still maintaining effective data transmission. By utilizing communication protocols, they help in monitoring and controlling processes from a distance, enhancing flexibility and scalability in system design.