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OPC UA communication

9.4 Using the S7-1500 CPU as an OPC UA client

Communication

Function Manual, 11/2019, A5E03735815-AH

251

The following figure shows the example in the network view of the TIA Portal:

Figure 9-57 Example of assigning connection parameters in the network view

9.4.5 Creating client interfaces

As of Version 15.1, the TIA Portal has an editor for client interfaces.

You group all PLC tags that you want to read or write from an OPC UA server in a client

interface.

In addition, the client interface contains all methods that the OPC UA server provides and

that you want to call with your user program (that acts as an OPC UA client).

If you create a client interface, STEP 7 also creates data blocks for the parameter

assignment of the connection to the OPC UA server from which you want to read data or to

which you want to write data.

Maximum number of client interfaces

You can create a maximum of 40 client interfaces.

Editor for client interfaces

To create a client interface, follow these steps:

1. Select the project view in the TIA Portal.

2. In the "Devices" area, select the CPU you want to use as an OPC UA client.

3. Click "OPC UA communication > Client interfaces".

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