The Advantage MCC was introduced in 1991 and was Westinghouse's first networked motor control.
I wrote a paper on this way back in 1993 entitled "Low-voltage motor control centers utilizing microprocessor technology". See http://ieeexplore.ieee.org/document/231982/ (http://ieeexplore.ieee.org/document/231982/)
Download the Instruction Booklet IB 8922-1 attached below.