Patent ID: 11936642
Assignee: SCHWEITZER ENGINEERING LABORATORIES, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 16:
17. A non-transitory computer-readable storage medium, the computer-readable storage medium including instructions that when executed by a computer, cause the computer to:
receive an input from an external source;
determine an output of logic equations based on the input from one or more of the external source, the local source, or locally calculated logic equations;
set one or more access control variables based on the output of the logic equations;
receive an access control command that requests a change in an access level of the IED;
compare a text input to a password associated with a maximum access setting corresponding to a maximum access level that a user is allowed to reach in the IED to determine whether a user is authorized to request the change in the access level; and
determine whether the access control command should be permitted to alter the access level based on the one or more access control variables regardless of the maximum access level indicated by the maximum access setting associated with the password.