November 2018
Intermediate to advanced
556 pages
14h 42m
English
Content preview from Hands-On Industrial Internet of Things
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Securing OPC UA on a controller
In this scenario, the OPC UA server for a PLC or DCS is running on a specific board, which can be installed in the rack of the controller itself. The edge is connected to the OPC UA server, which is hosted by the controller through the OPC UA client interface, as shown in the following diagram:
OPC UA on controller
This setup, like the previous one, entirely uses OPC UA interfaces. In this scenario, a firewall must be placed to filter and secure the HTTPS/TCP traffic due to the requests coming from the edge device placed outside of the network where the OPC UA server is linked. The deployment of another firewall ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.