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

A microprocessor controls at least one of a first communication circuit and a second communication circuit such that a first input/output process and a second input/output process are executed in parallel. The first input/output process includes a process outputting output data from a first transfer...

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Bibliographic Details
Main Authors EGUCHI, SHIGEYUKI, HAMASAKI, OSAMU, NISHIYAMA, YOSHIHIDE
Format Patent
LanguageEnglish
French
German
Published 11.12.2013
Subjects
BASIC ELECTRONIC CIRCUITRY
CALCULATING
COMPUTING
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PHYSICS
PULSE TECHNIQUE
REGULATING
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Summary:A microprocessor controls at least one of a first communication circuit and a second communication circuit such that a first input/output process and a second input/output process are executed in parallel. The first input/output process includes a process outputting output data from a first transfer buffer, through the first communication circuit, to a first instrument in a PLC system bus, and a process inputting input data from the first instrument, through the first communication circuit, to the first transfer buffer. The second input/output process includes a process outputting output data from a second transfer buffer, through the second communication circuit, to a second instrument in a field network, and a process inputting input data from the second instrument, through the second communication circuit, to the second transfer buffer.
Bibliography:Application Number: EP20110860722