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Data Reading and Writing

Read and write OPC server data synchronously or asynchronously

Functions

`read`	Read data synchronously from OPC DA 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.

Featured Examples

Acquire Data from an OPC Data Access Server

The basic steps involved in using OPC Toolbox™ to acquire data from an OPC Server.

Open Script

Read and Write Data to an OPC Data Access Server

Use OPC Toolbox™ synchronous read and write operations to exchange data with an OPC server.

Open Script

Log Data from an OPC Data Access Server

Configure and execute a logging session, and how to retrieve data from that logging session.

Open Script

OPC Toolbox Documentation

Support

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