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Strengths of the edge on OPC Proxy
The strengths are the same as those of the previous one, plus the following:
- There is no need to move the DCOM traffic between firewalls since this occurs solely between the OPC server and the OPC Proxy in the same network. Thanks to the tunneling, just the TCP traffic between the two OPC Proxies on opposite sides must be managed by the firewalls.
- The OPC Proxy abstracts the OPC interfaces. The edge that is implementing the OPC UA client interface can perform OPC UA reading requests even if there is an OPC Classic server on the other side, and vice versa.
- The OPC Proxy can act as an OPC concentrator, gathering the data from several OPC Classic or UA servers and making it available through a unique endpoint.
- The edge only has to implement an OPC UA client interface, so it doesn't have to run on a Windows box.