Siemens SIMATIC ET 200AL - Page 813

OPC UA communication
9.1 What you need to know about OPC UA
Communication
Function Manual, 12/2017, A5E03735815-AF
127
OPC UA clients in general
The following description uses various different OPC UA clients to illustrate the use of
OPC UA clients:
● "UaExpert" of Unified Automation. An extensive client that can be used free of charge:
Link for downloading UaExpert (
https://www.unified-automation.com/downloads/opc-ua-
clients.html)
● "UA Sample Client" of the OPC Foundation. This client is available free of charge for
users who are registered with the OPC Foundation :
Link for downloading the example client of the OPC Foundation
(https://opcfoundation.org
)
Application example in Industry online support
Siemens Industry Online Support provides an application example with a client API free of
charge. .NET developers can use the functions of this interface to access the OPC UA
server of an S7-1500. The client API is based on the .NET OPC UA stack of the OPC
Foundation.
The application example shows how to establish connections between servers and clients,
for example. It also demonstrates the reading and writing of PLC tags.
Link to download OPC UA .NET client for the SIMATIC S7-1500 OPC UA Server
(http://support.automation.siemens.com/WW/view/en/109737901
)