Dual processor control system with continuous parallel interface

Details Dual processor control system with continuous parallel interface Dual processor control system with continuous parallel interface

1994-03-15

1996-10-01

Nappi, Robert

Elevator, industrial lift truck, or stationary lift for vehicle

Having computer control of elevator

187393, 187277, 371 204, B66B 500

Patent

active

055612776

ABSTRACT:
A control system comprises a first processor that generates 16-bit control words and a 16-bit interface check word representing the ones complement of each control word. Preferably, each word is formed as two 8-bit bytes, which are transmitted sequentially to a second processor over an 8-bit parallel interface. The second processor compares each control word with its corresponding interface check word to detect any parallel interface hardware component failures. Preferably, the high and low bytes of the interface check word are swapped prior to transmission to the second processor, and the second processor restores the swaps of the high and low bytes of the interface check word prior to comparing.

REFERENCES:
patent: 4811278 (1989-03-01), Bean et al.
patent: 5007054 (1991-04-01), Lee et al.
patent: 5139113 (1992-08-01), Mizuno et al.
patent: 5202540 (1993-04-01), Auer et al.
patent: 5349684 (1994-09-01), Edem et al.

Affiliated with

Also associated with

Rating

Dual processor control system with continuous parallel interface does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual processor control system with continuous parallel interface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual processor control system with continuous parallel interface will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1503211