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You want to exchange data using the OPC-UA protocol and wonder if this is possible and how?

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This protocol is based on the client/server principle. An OPC server is a piece of software that is tailored to one or more PLC/machine manufacturers. For example, you have a server running on your Revolution Pi (PLC) to collect and send Data to a client. For this simple example, we have a server and a client. Our server is a Python program that generates data from a pressure and temperature sensor and the time of each change in value.

Instructions

1. Install OPCUAOPC-UA

2. install UAExpert client

3. copy server.py into a directory on the target device and adapt it

Implementation

1. Install OPCUA OPC-UA and some dependencies on your RevPi

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2. Download and install UaExpert client and configure it.

Here you must enter the Entpoint Endpoint URL like as shown on in the video below.

Enter opc.tcp://<your revpi-Ipaddress>. For example, enter opc.tcp://192.168.1.xxx when your RevPi address is 192.168.1.xxx and select the authentication Settings (Username, Password) for security reasons.

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You can copy it to your RevPi device like sohttps://kunbus-gmbh.atlassian.net/plugins/servlet/servicedesk/customer/confluence/shim/spaces/KS/pages/350683137 i.e., to /home/pi/

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