Chapter 4: Implementing the Industrial IoT Data Flow

1. OPC Classic uses COM/DCOM, while OPC UA is platform-independent
2. Remote Procedure Call
3. OPC abstracts the connected device, providing standard and common interfaces to query its data
4. If the security mode is Sign, the OpenSecureChannel is sent using the PrivateKey of the client Application Instance Certificate as a signature
5. A session is a logical connection between a client and a server
6. The I-IoT Edge has to manage more signals than the IoT Edge
7. The best choice depends on the specific plant environment and the requirements of the specific use case
8. 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
9. Because we often have to deal with old devices, for which OPC...