---
title: What is Remote Access?
description: Remote access is the ability to access a controller or a network remotely through a network connection. Remote access enables users to access the systems they need when they are not physically able to
---

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# What is Remote Access?

Remote access is the ability to access a controller or a network remotely through a network connection. Remote access enables users to access the systems they need when they are not physically able to connect directly; in other words, users access systems remotely by using a internet connection.

Automation companies make use of remote access to connect to their customer's production network/PLCs from remote locations to help them resolve issues with their production.

**There are two main operations which Remote Access is used for**

1. First one is controlling remote I/O on Ethernet based protocols like EtherNet/IP, ProfiNet, or Modbus/TCP (UDP) and others.
2. Second is to program and/or debug the internal program of the controller. With these features, and utilizing the Ethernet’s other services such as a web and ftp server, remote administration of a control process becomes possible.

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