Version: 7.9

system.opchda

OPC HDA Functions

The following functions give you access to interact with the HDA types of OPC servers.

Performs a browse at the given root.

Will query the server for aggregates that it supports.

Queries the given server for the item attributes that are available with system.opchda.readAttributes.

Returns a list of the OPC-HDA servers configured on the system.

Insert values on the OPC-HDA server if the given item ID does not exist.

Will insert values on the OPC-HDA server, or replace them if they already exist.

Checks to see if the specified OPC-HDA server is defined, enabled, and connected.

Reads the specified attributes for the given item over a time range.

Reads processed values from the OPC-HDA server.

Reads raw values from the OPC-HDA server.

Replaces values on the OPC-HDA server if the given item ID exists.