Redundant supervisory control system, and redundancy...

Details Redundant supervisory control system, and redundancy... Redundant supervisory control system, and redundancy...

2006-12-04

2009-11-03

Trost, IV, William (Department: 2416)

Multiplex communications

Fault recovery

Bypass an inoperative station

C370S216000, C370S221000, C370S223000, C370S224000, C398S009000, C398S010000, C398S016000, C398S017000

Reexamination Certificate

active

07613108

ABSTRACT:
An object is to provide a redundant supervisory control system and a redundancy switching method thereof. In the redundant supervisory control system, remote I/O apparatuses are less likely to be inaccessible, even in a case where failures occur in plural locations. Thus, the reliability of the system is enhanced. The redundant supervisory control system including a plurality of first loop interface units in each of a pair of controllers, second loop interface units, and communication cables each connecting the plurality of first and second loop interface units with one another in a circular loop. The redundant supervisory control system is configured by connecting the controllers and the remote I/O units to one another in a plurality of loop networks. In a case where abnormality in the loop networks is detected by use of received data in the networks, the first and second loop interface units that can perform normal reception are automatically selected.

REFERENCES:
patent: 4527270 (1985-07-01), Sweeton
patent: 5054111 (1991-10-01), Goodwin
patent: 6226681 (2001-05-01), Koga et al.
patent: 6639893 (2003-10-01), Chikenji et al.
patent: 2006/0280117 (2006-12-01), Gopinadhan et al.
patent: 57-157301 (1982-09-01), None
U.S. Appl. No. 12/108,774, filed Apr. 24, 2008, Sameda, et al.

Affiliated with

Also associated with

Rating

Redundant supervisory control system, and redundancy... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Redundant supervisory control system, and redundancy..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Redundant supervisory control system, and redundancy... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4098137