Industrial controller with decompilable user program

Details Industrial controller with decompilable user program Industrial controller with decompilable user program

1989-04-05

1991-04-02

Shaw, Gareth D.

Boots, shoes, and leggings

364973, 3649269, 364949, 364977, 364147, G06F 944, G06F 3153

Patent

active

050051520

ABSTRACT:
A decompiler for industrial controllers operates on ladder logic programs that have been compiled into series jump format machine code. Series jump machine code evaluates ladder logic rungs through jump instructions jumping to a COIL ON routine, a COIL OFF routine, or another jump instruction, where each contact of the rung is associated with a single jump instruction. The decompiler creates a matrix of connection nodes then simplifies the matrix to return the ladder logic program. A decompiled ladder diagram may be thereby produced without the need for non-executable source code "tokens" included within the compiled machine language program.

REFERENCES:
patent: 4316260 (1982-02-01), Hideshima et al.
patent: 4326207 (1982-04-01), Suda et al.
patent: 4425630 (1984-01-01), Yomogida et al.
patent: 4432047 (1984-02-01), Okayama
patent: 4449180 (1984-05-01), Ohshima et al.
patent: 4742443 (1988-05-01), Rohn et al.
Specification, Ser. No. 07/161,484, Flood et al., filed Feb. 29, 1989.

Affiliated with

Also associated with

Rating

Industrial controller with decompilable user program does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Industrial controller with decompilable user program, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Industrial controller with decompilable user program will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-330964