As a result of adding a subordinate network extension (SubordinateExportTagNetworkExt) to a subordinate (JACE) station’s NiagaraNetwork, each of its child NiagaraStation components has a JoinProfile component added. The only one of importance is the one under the NiagaraStation that represents the Supervisor station—any others are not used, and can be left at defaults.

The JoinProfile has several properties you can edit with optional values, such as “Station Display Name”, as well as default properties for the Supervisor to make a Fox client connection back to this subordinate station (not required if the subordinate is already configured in the Supervisor’s NiagaraNetwork).

In AX-3.7u1, when issuing a Join from a subordinate JACE station, and that station does not already exist in the Supervisor, the “Default Subordinate User Password” property must be configured with a valid password for the selected “Default Subordinate User”. If no valid user and password has been entered the Join will fail due to authentication errors. These user and password properties may be left blank if the subordinate station already exists in the Supervisor's NiagaraNetwork. For further details, Editing the Join Profile.

Also included, a “Station File” property with the file ord to the “profile.bog file” that resides on the subordinate station. This file is automatically created when you enable the JoinProfile. You can use it to model the folder/container hierarchy of this subordinate station, as it will be created (after a Join) on the Supervisor under its NiagaraNetwork. In addition, this profile.bog file holds various property values used in this NiagaraStation (and its device extensions) on the Supervisor. For more details, see station bog file.

Also, the Join Profile has a “Station Info” child container, empty by default. You can add string slots under it and assign values that can provide organizational utility, useful in very large systems. For more details, see StationInfo.