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Data Reading and Writing

Read and write OPC server data synchronously or asynchronously

Functions

read Read data synchronously from OPC groups or items
readasync Read data asynchronously from group or items
write Write values to group or items
writeasync Asynchronously write values to group or items
cancelasync Cancel asynchronous read and write operations

Examples and How To

Read and Write Data

Describes how to use group and item objects to read and write data synchronously and asynchronously.

Work with Structure-Formatted Data

Describes how OPC Toolbox™ software arranges data in structure formats.

Concepts

OPC Data: Value, Quality, and TimeStamp

Describes the Value, Quality, and TimeStamp elements that make up OPC data.

Array-Formatted Data

Describes how you can use array formats returned by OPC Toolbox software.

Work with Different Data Types

Describes how OPC Toolbox software deals with MATLAB® data types and OPC server data types.

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