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| OPC Technology Overview OPC Server |
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OPC Data Access Specification | DCOM Configuration | References
OPC Data Access Specification
OPC Item | OPC Group | OPC Server | OPC Client | The Namespace
OPC Server
An OPC Server is an application that controls the communication between all devices and the clients.
An OPC Server can send a great amount of data to an OPC Client even if the client do not knows the data source. These sources can be temperature sensors, link utilization and others, in different locals with differents datatypes.
Servers contain some OPC Group objects.
OPC Item can be a node, an attribute of a device or any item in the namespace. Each item has a compatible datatype with OPC specification.
The above image shows two groups with 2 items created by the client. Note that each group contain 2 items associated with an attribute in the namespace.
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