Pulse output function for programmable logic controller with...

Details Pulse output function for programmable logic controller with... Pulse output function for programmable logic controller with...

2007-01-30

2007-01-30

Du, Thuan (Department: 2116)

Electrical computers and digital processing systems: support

Clock, pulse, or timing signal generation or analysis

Multiple or variable intervals or frequencies

C318S567000, C327S291000, C388S832000, C331S179000

Reexamination Certificate

active

10770663

ABSTRACT:
Certain exemplary embodiments provide a method for producing pulsed outputs, comprising: automatically changing a first user-specified pulse frequency to a second pulse frequency; and automatically outputting a plurality of pulses from the programmable logic controller at frequencies varying between the first user-specified pulse frequency and the second pulse frequency according to a user-specified linear-time-rate variation.

REFERENCES:
patent: 4103216 (1978-07-01), Hayes
patent: 5572105 (1996-11-01), Nojima et al.
patent: 5977739 (1999-11-01), Ohsawa
patent: 6717383 (2004-04-01), Brunt et al.
patent: 2004/0059495 (2004-03-01), Nakashima et al.
patent: 4417424 (1995-11-01), None
patent: 19501652 (1996-07-01), None
patent: WO 02/065224 (2002-01-01), None
PCT International Search Report , mailed Jan. 13, 2005 (5 pages).
PCT Written Opinion of the International Searching Authority (8 pages).

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