- OPC Classic uses COM/DCOM, while OPC UA is platform-independent
- Remote Procedure Call
- OPC abstracts the connected device, providing standard and common interfaces to query its data
- If the security mode is Sign, the OpenSecureChannel is sent using the PrivateKey of the client Application Instance Certificate as a signature
- A session is a logical connection between a client and a server
- The I-IoT Edge has to manage more signals than the IoT Edge
- The best choice depends on the specific plant environment and the requirements of the specific use case
- 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 without the need to cross DCOM traffic between network boundaries
- Because we often have to deal with old devices, for which OPC...
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