What is remote IO and how does it work?

## What is remote IO and how does it work?

### What is remote IO?

Remote IO stands for remote input/output, which is a method of connecting input and output devices to a central processing unit (CPU) using a network instead of physical cables. This allows for the interaction between the devices and the CPU to be performed over a distance, which can be especially useful in industrial settings where machinery and sensors are spread out across a large area.

### How does it work?

Remote IO works by using a network, typically an Ethernet connection, to communicate between the input/output devices and the CPU. The IO devices are connected to remote IO modules, which are then connected to the network. These modules act as intermediaries between the devices and the CPU, relaying information back and forth.

When a sensor or input device detects a change, it sends a signal to the remote IO module, which then transmits this information over the network to the CPU. The CPU processes the information and sends commands back through the network to the output devices connected to remote IO modules. This allows for real-time monitoring and control of the input/output devices remotely.

Remote IO systems are often used in industrial automation applications where it is not practical to run physical wires from each device to a central control room. By using a network connection, remote IO systems provide a flexible and scalable solution for monitoring and controlling a wide range of devices from a centralized location.

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