The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 2001
Filed:
Jun. 19, 1998
Takeshi Jinkawa, Kyoto, JP;
Omron Corporation, Kyoto, JP;
Abstract
A user program stored in a user program memory of a programmable controller includes a control program from which a description defining interlock conditions is excluded and an interlock program defining interlock conditions for the result of processing conforming to the control program and described separately from the control program. The control program is first read out of the user program memory, and operation processing is executed in accordance with the control program. The result of the operation is written into an I/O memory. Thereafter, the interlock program is read out of the user program memory, and operation processing conforming to the interlock program is executed. The result of the operation conforming to the interlock program is overwritten on the I/O memory.