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AccessRights

Inherent nature of access to item

Description

AccessRights represents the server's ability to access a single OPC data item. The property value can be 'read', 'write', or 'read/write'. If AccessRights is 'read', you can read the server item's value. If AccessRights is 'write', you can write values to the server item. If AccessRights is 'read/write', you can read and change the server item's value. If you attempt a read or write operation on an item that does not have the required access rights, the server may return an error.

Characteristics

Access

Read-only

Applies to

daitem

Data type

character vector

Values

[ 'read' | 'read/write' | 'write' ]

The value is set by the server when an item is created.

See Also

Functions

read, readasync, refresh, write, writeasync

Properties

Subscription

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