Electronic digital logic circuitry – Multifunctional or programmable – Array
Patent
1995-11-09
1998-03-24
Westin, Edward P.
Electronic digital logic circuitry
Multifunctional or programmable
Array
326 39, H03K 19177
Patent
active
057317127
ABSTRACT:
An architecture is provided for field programmable gate army (FPGA) devices which implement relay ladder logic in PLC systems. Once the device is programmed, the implemented logic is executed in rung parallel fashion at electronic speeds. A direct correspondence of these devices in detail to relay ladder logic assures that technology mapping software for the FPGA device will run sufficiently fast for use in PLC systems. A reversible device programming method is required, so that the device can be reprogrammed conveniently to different relay ladder models. The architecture scales to families of devices of differing sizes and resources. A basic relay ladder logic is implemented, which supports various relay ladder logic dialects.
REFERENCES:
patent: 3473160 (1969-10-01), Wahlstrom
patent: 4247909 (1981-01-01), Bradley et al.
patent: 4441161 (1984-04-01), Sasaki et al.
patent: 5058052 (1991-10-01), Sexton et al.
patent: 5122685 (1992-06-01), Chan et al.
patent: 5144166 (1992-09-01), Camarota et al.
patent: 5187393 (1993-02-01), El Gamel
patent: 5260881 (1993-11-01), Agrawal et al.
patent: 5327023 (1994-07-01), Kawana
patent: 5341040 (1994-08-01), Garverick et al.
patent: 5369314 (1994-11-01), Patel
patent: 5475583 (1995-12-01), Bock et al.
Driscoll Benjamin D.
Westin Edward P.
LandOfFree
Programmable gate array for relay ladder logic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Programmable gate array for relay ladder logic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable gate array for relay ladder logic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2291759