Invention Grant
US08504176B2 CPU unit of PLC, system program for PLC, and recording medium storing system program for PLC
有权
PLC的CPU单元，PLC的系统程序和PLC的记录介质存储系统程序
- Patent Title: CPU unit of PLC, system program for PLC, and recording medium storing system program for PLC
- Patent Title (中): PLC的CPU单元，PLC的系统程序和PLC的记录介质存储系统程序
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Application No.: US13399083Application Date: 2012-02-17
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Publication No.: US08504176B2Publication Date: 2013-08-06
- Inventor: Akiro Kobayashi , Yukio Iname , Tetsushi Jakunen , Yoshihide Nishiyama
- Applicant: Akiro Kobayashi , Yukio Iname , Tetsushi Jakunen , Yoshihide Nishiyama
- Applicant Address: JP Kyoto
- Assignee: Omron Corporation
- Current Assignee: Omron Corporation
- Current Assignee Address: JP Kyoto
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2011-056776 20110315
- Main IPC: G05B19/18
- IPC: G05B19/18
Abstract:
A system includes a first execution control instruction to start execution of a first control program every first execution cycle of the same period as a control cycle period and a second execution control instruction to start execution of a second control program every second execution cycle whose period is an integral multiple of at least twice the control cycle period. The second execution control instruction includes an instruction to start, in a control cycle in which a second execution cycle starts, execution of the second control program after the end of execution of the first control program, and if the second control program is not completed before the end of the control cycle, to start execution of an unexecuted part of the second control program after the end of execution of the first control program in the next control cycle.
Public/Granted literature
- US20120239201A1 CPU UNIT OF PLC, SYSTEM PROGRAM FOR PLC, AND RECORDING MEDIUM STORING SYSTEM PROGRAM FOR PLC Public/Granted day:2012-09-20
Information query
IPC分类:
