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Use MSComm Control to Realize the Communication between PC and PLC

Wang Xiaozeng

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Abstract

PLC is an industry control computer which applies microprocessor to its core PLC has been applied to the distributed monitor system which is responsible for highspeed data collect of the spot,logic operation,count,PID regulate etc The computer has been used to manage the monitor system This article introduces the serial communication controlMSComm, the command of the programmable operation of PLC,the link method between PC and PLC, the communication parameter′s setup of PLC The article also introduces how to use the RS 232 serial communication port to realize the communication between PC and PLC This article discusses the communication method between PC and PLC and the structure of soft and hardware, applying the visual program language The method can make the best of resources and characters of the system and improve communication efficiency

About this research paper

What this paper is about

PLC is an industry control computer which applies microprocessor to its core PLC has been applied to the distributed monitor system which is responsible for highspeed data collect of the spot,logic operation,count,PID regulate etc The computer has been used to manage the monitor system This article introduces the serial communication controlMSComm, the command of the programmable operation of PLC,the link method between PC and PLC, the communication parameter′s setup of PLC The article also introduces how to use the RS 232 serial communication port to realize the communication between PC and PLC This article discusses the communication method between PC and PLC and the structure of soft and hardware, applying the visual program language The method can make the best of resources and characters of the system and improve communication efficiency

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Available abstract

PLC is an industry control computer which applies microprocessor to its core PLC has been applied to the distributed monitor system which is responsible for highspeed data collect of the spot,logic operation,count,PID regulate etc The computer has been used to manage the monitor system This article introduces the serial communication controlMSComm, the command of the programmable operation of PLC,the link method between PC and PLC, the communication parameter′s setup of PLC The article also introduces how to use the RS 232 serial communication port to realize the communication between PC and PLC This article discusses the communication method between PC and PLC and the structure of soft and hardware, applying the visual program language The method can make the best of resources and characters of the system and improve communication efficiency

Key concepts: Computer science, Programmable logic controller, Serial communication, Serial port, Embedded system, Microprocessor, Computer hardware, Simatic S5 PLC

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