Invention Grant
- Patent Title: CPU of PLC, system program for PLC, and recording medium storing system program for PLC
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Application No.: US14017904Application Date: 2013-09-04
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Publication No.: US09618924B2Publication Date: 2017-04-11
- Inventor: Yoshihide Nishiyama , Shigeyuki Eguchi , Osamu Hamasaki , Tatsuya Kojima
- Applicant: OMRON CORPORATION
- Applicant Address: JP Kyoto
- Assignee: OMRON CORPORATION
- Current Assignee: OMRON CORPORATION
- Current Assignee Address: JP Kyoto
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2011-056772 20110315
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G05B19/05 ; G06F9/54 ; G06F9/52
Abstract:
The system program includes, as an execution control process of the control program, an owner-side start process that starts execution of an owner-side control program; a copy process in which, when execution of the owner-side control program ends, a global variable that is rewritten by the owner-side control program is copied from a global variable area to a synchronous buffer corresponding to the global variable; and a referrer-side start process that starts execution of a referrer-side control program.
Public/Granted literature
- US20140005805A1 CPU OF PLC, SYSTEM PROGRAM FOR PLC, AND RECORDING MEDIUM STORING SYSTEM PROGRAM FOR PLC Public/Granted day:2014-01-02
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