# OPC UA

> Symcon documentation · English · generated on 2026-09-26  
> Index: https://www.symcon.de/en/llms.txt

Source: https://www.symcon.de/en/service/documentation/module-reference/devices/opc-ua/

_Requires Symcon >= 6.4_

> **Note:** The OPC UA module is a paid extension that can be purchased for any existing Symcon license in the [Shop](https://www.symcon.de/en/shop/enterprise/bundle-ips-enterprise-opcua). Up to 3 OPC UA nodes can be created free of charge for each Symcon license.

The OPC UA (Client) connection allows the comfortable setup of OPC UA devices within Symcon. The OPC UA address space of a device can be determined and traversed via an OPC UA configurator. Any OPC UA addresses (nodes) can be created. The nodes show the current value, which is automatically monitored and updated if the device supports this. Alternatively, the value can also be queried cyclically. The value can also be changed via visualization, script and flowchart.

### Video tutorial for setup
- Follows

#### Supported Protocol
* OPC UA (Binary Encoding)

#### Supported Transport
* TCP/IP

#### Supported Security Modes
* None
* Sign
* SignAndEncrypt

#### Supported Authentication Methods
* Anonymous
* Username/Password

#### Supported SecurityPolicies
* None
* Basic256
* Basic256Sha256

#### Supported data types
* Boolean, SByte, Byte, Int16, UInt16, Int32, UIn32, Int64, UIn64, Float, Double, String, DateTime, GUID, ByteString, XMLElement, NodeId, StatusCode, QualifiedName, LocalizedText, Variant
* Array of the respective types (represented as separate variables)