CPU OF PLC, SYSTEM PROGRAM FOR PLC, AND RECORDING MEDIUM STORING SYSTEM PROGRAM FOR PLC

A system program causes, as an execution preparation process for a control operation of a PLC, execution of a process for producing a reception buffer for storing received input data, and execution of a process for producing, for each input data referred to by a control program, an input synchroniza...

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Bibliographic Details
Main Authors EGUCHI, SHIGEYUKI, HAMASAKI, OSAMU, NISHIYAMA, YOSHIHIDE, KOJIMA, TATSUYA
Format Patent
LanguageEnglish
French
German
Published 14.05.2014
Subjects
CALCULATING
COMPUTING
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PHYSICS
REGULATING
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Summary:A system program causes, as an execution preparation process for a control operation of a PLC, execution of a process for producing a reception buffer for storing received input data, and execution of a process for producing, for each input data referred to by a control program, an input synchronization buffer used by the control program as a reference target for the input data. The system program causes, as an execution control process for the control operation of the PLC, execution of an input copy process for copying the received input data from the reception buffer to the input synchronization buffer corresponding to the input data, and execution of a control program start process for starting execution of the control program.
Bibliography:Application Number: EP20110817198