From the course: Learning SCADA: Collect, Analyze, and Visualize Data for Industrial Automation

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OPC server/client

OPC server/client - Ladder Logic Tutorial

From the course: Learning SCADA: Collect, Analyze, and Visualize Data for Industrial Automation

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OPC server/client

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- [Narrator] OPC is implemented in server/client pairs. In any OPC connection, there is a relationship between two computer applications. One application acts as the server providing data and the other one acts as a client using data. Server/client pair, sometimes referred to as parent/child pair, where server is the parent, client is the child, and in some documentation also referred to as primary and secondary. Different naming conventions for the same concept. OPC server and client can be within the same computer locally or between two computers remotely using a network or internet. An OPC client is basically any device, software, or application that uses and receives data either to collect, analyze, or to send them somewhere else. In the example you see on the screen, the OPC client is an HMI to show the data coming from two field devices, Siemens and ABB sensors. An OPC server is a software program to provide data.…

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