Open a Browsing Session

System Model > Variable Tags > Refer to Variable Tags > Open a Browse Session

Open a browsing session by using the TagBrowseOpen Cicode function. The server then builds a snapshot of the data requested (representing the state of the data at the time TagBrowseOpen was called).

A snapshot from a given server contains the same number of records as the number of tags available from all I/O devices. Requesting only the “CLUSTER” field with 10000 tags belonging to three clusters will produce a snapshot with 10000 records where entries Cluster1, Cluster2, Cluster3 will be repeating a number of times.

The snapshot will exist on the server until all the records have been fetched by the client, or the browse session is closed, or an existing connection is lost, or a new connection is established.

When you use the TagBrowseOpen function you have the option to specify several parameters which will determine which tags will be displayed. These parameters are used to select tags to display in the browsing session.