Creating Client Interfaces - Siemens SIMATIC ET 200AL Compact Operating Instructions

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

Figure 3-223 Example of assigning connection parameters in the network view

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

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".

4. Double-click "Add new client interface".

STEP 7 creates a new client interface and display in the editor.

Figure 3-224 Adding OPC UA client interface

STEP 7 names the new interface "Client interface_1". If a "Client interface_1" already exists,

the new interface receives the designation "Client interface_2" etc.

Communication

Function Manual, 11/2023, A5E03735815-AL

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

OPC UA communication

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