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1. (WO2018042520) PROGRAM EDITING DEVICE, PROGRAM EDITING METHOD AND PROGRAM EDITING PROGRAM

Pub. No.:    WO/2018/042520    International Application No.:    PCT/JP2016/075360
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Aug 31 01:59:59 CEST 2016
IPC: G05B 19/05
G05B 19/042
G05B 19/045
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: OGAWA, Tomotaka
小川 知剛
Title: PROGRAM EDITING DEVICE, PROGRAM EDITING METHOD AND PROGRAM EDITING PROGRAM
Abstract:
A dependency-between-variables analysis unit (310) analyzes the relationship between arguments and return values among instructions of a plurality of instructions included in a sequence control program, which is a control program written in a language for sequence control. A PLC instruction rearrangement-and-partitioning unit (312), on the basis of the relationship between the arguments and return values among the instructions analyzed by the dependency-between-variables analysis unit (310), performs at least either changing the instruction execution order of the plurality of instructions, or partitioning the sequence control program by instruction unit.