Prerequisite: A battery is inserted and the clock is set to actual time.
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Double-click the Security symbol in the lower right corner of Automation Builder.
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Select the “Devices” tab.
The certificate information opens.
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Select the PLC in the left “Information” view.
All services of the PLC that require a certificate are displayed in the right Information view.
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Select the service “OPC UA Server”.
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Click the icon
to create a new certificate for the device.“Certificate Settings” dialog appears.

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Define the certificate parameters according the figure above and click [OK].
The certificate is created on the PLC.

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Upload the certificate to your PC.
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Restart the runtime system.
For further information see ⮫ “OPC UA secure”.