OPC Server
With version 2.12 upwards it is possible for any OPC clients to communicate and exchange data with WinCC OA via the WinCC OA OPC server.
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Meets the Data Access 2.05a specification (reading/writing of online values).
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Launched as a manager just like other drivers.
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Items (DPEs) provided by the server to other clients can be defined using data point groups.
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DPEs can be declared as read-only items (group OPCRead) or writable items (group OPCWrite).
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Any clients can browse the WinCC OA OPC server hierarchically.
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As an OPC driver it is obviously only available under Windows.
This enables communication with e.g.:
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DB systems
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Other control systems
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Long-term archiving tools
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Reporting tools
| Chapter | Description | |
|---|---|---|
| OPC server, basics | General information and links to the chapters. | |
| Requirements for the OPC server | Requirements for operating the OPC server | |
| Accessing WinCC OA data | The data point groups OPCRead and OPCWrite are used for providing the data point elements for communication. | |
| Establishing communication | How to establish a connection | |
| Possible config entries | ||
| [opcsrv] | Possible config entries that apply to the OPC Server. | |
| [OPCSERVER] | ||
| [WINCC_OA] | ||
| Mapping the WinCC OA status bits | Mapping the WinCC OA status bits onto OPC quality bits | |
| Summary and relevant links | Further chapters of the Online Help | |
