OPC UA in Industry 4.0
OPC UA Information Model
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Benefit of using an OPC UA information model (4:56)
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Define a custom information model for a machine use case (3:25)
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Concepts of address space, nodes and references in OPC UA (3:34)
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Identify a node uniquely in the OPC UA address space (3:56)
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The eight node classes in OPC UA
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Overview of references in OPC UA
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Address space organization in OPC UA
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Quiz on standard notations of node classes and references
Software setup for example applications
OPC UA Read Write Services
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Concepts of read/write services in OPC UA
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Create a variable node in the information model (8:30)
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Read/write the variable node in the information model (9:01)
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Read/write the variable node remotely using a client application (13:41)
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Compile the custom information model into the OPC UA server (6:09)
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Updating the value of a node in the information model on a regular interval by polling (6:21)
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Updating the value of a node in the information model only on read request from a client (8:13)
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Create a subscription to monitor data change of the variable (15:40)
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Quiz on OPC UA read/write services
OPC UA Methods
OPC UA Security
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Concepts of secure communication in OPC UA
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Authenticate the client with username and password (8:33)
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Generate public and private keys required for message signing and encryption (3:13)
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Use message signing to verify if the client can be trusted (11:51)
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Use encryption to keep the client/server communication confidential (4:23)
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Quiz on OPC UA security
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