How to connect OPC Simulation Server to SCADA system.
In this post, we learn how to use OPC UA to communicate between two PLCs by setting up an S7-1500 as an OPC UA Server with a dedicated server interface and user authentication.
In this demo, two PLCs will exchange data via OPC UA. PLC_2 acts as an OPC UA server, which exposes data to PLC_1, the OPC UA client. We will incrementally improve the security of the communication as we go through the demo.
In PLC_1, I activate the OPC UA Client in the PLC Properties under General > OPC UA > Client.
Activate the OPC UA Client.
Add a Client Interface.
Configure the Server IP Address.
Set Up Security for OPC UA Client.
Create a New Read List.
Browse for an OPC UA Server Interface.
Connect to the OPC UA Server.
In TIA Portal, I have created a new project, added two PLCs, and run through the security wizard.
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