---
title: "OPC UA Server | Introduction | N3uron KB V1.21"
slug: "opc-ua-server-introduction"
description: "OPC UA Server is a N3uron module designed to expose the data collected through any other data acquisition module within the platform to third-party systems…"
updated: 2024-07-03T11:29:36Z
published: 2024-07-03T11:29:36Z
canonical: "docs.n3uron.com/opc-ua-server-introduction"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.n3uron.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

**N3uron's OPC UA Server** module allows **N3uron** to expose the data collected through any other data acquisition module within the platform to third-party systems.

Some of the main functionalities supported by this module include:

- Unlimited OPC UA client connections.
- None, Sign, and Sign & Encrypt security modes.
- None, Basic 256, Basic 128 & Rsa 15 and Basic 256 & Sha 256 security policies.
- Possibility to create different user roles to filter and restrict the data available for each of them.
- Possibility to add several endpoints.
- Historical Data Access (HA), allows OPC UA clients to access historical data stored in MongoDB databases using the [Historian](/v121/docs/historian-introduction) module.
- Ability to execute code via [Scripting](/v121/docs/scripting-introduction) using OPC UA methods.
- Graphical interface for managing digital certificates.
- Store & Forward.