PROGRAMMABLE CONTROLLER

PROBLEM TO BE SOLVED: To provide a programmable controller that can share a portion of data among a plurality of sequence programs, without changing content of a specific sequence program.SOLUTION: A PLC device 10 comprises a rule setting unit 28 that sets an access rule 60 associated with permissio...

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Bibliographic Details
Main Author HIRAISHI YUKIHIRO
Format Patent
LanguageEnglish
Japanese
Published 01.02.2018
Subjects
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PHYSICS
REGULATING
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Summary:PROBLEM TO BE SOLVED: To provide a programmable controller that can share a portion of data among a plurality of sequence programs, without changing content of a specific sequence program.SOLUTION: A PLC device 10 comprises a rule setting unit 28 that sets an access rule 60 associated with permission or rejection of access to a first data storage unit 34 during execution of a second sequence program 42, and a program execution unit 26 that executes a first sequence program 40 while accessing to only the first data storage unit 34, and that, on the other hand, executes the second sequence program 42 while accessing to the first data storage unit 34 and a second data storage unit 36 according to the set access rule 60.SELECTED DRAWING: Figure 5 【課題】特定のシーケンスプログラムの内容に変更を加えることなく、複数のシーケンスプログラムの間で一部のデータを共有化可能なプログラマブルコントローラを提供する。【解決手段】ＰＬＣ装置１０は、第２シーケンスプログラム４２の実行中における第１データ格納部３４へのアクセスの許否に関するアクセス規則６０を設定する規則設定部２８と、第１データ格納部３４のみにアクセスしながら第１シーケンスプログラム４０を実行する一方、設定されたアクセス規則６０に従って第１データ格納部３４及び第２データ格納部３６にアクセスしながら第２シーケンスプログラム４２を実行するプログラム実行部２６を備える。【選択図】図５
Bibliography:Application Number: JP20160147145