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Study on Serial Communication between SIEMENS S7-200 PLC and PC Based on VB

Hongbing Zhang

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Abstract

The PLC of SIEMENS SIMATIC S7-200 series is widely suit for small and middle controlling systems.The excellent communication ability makes itself to be used wider and wider.In the fields of modern industrial controlling,PLC is used to collect,calculate and control every kind of signals and data,while the host computer can provide mutual interface,realizing the functions of managing data and long-distance controlling.This paper introduces the theory and way on the serial communication between S7-200 PLC and host computer based on VB.

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What this paper is about

The PLC of SIEMENS SIMATIC S7-200 series is widely suit for small and middle controlling systems.The excellent communication ability makes itself to be used wider and wider.In the fields of modern industrial controlling,PLC is used to collect,calculate and control every kind of signals and data,while the host computer can provide mutual interface,realizing the functions of managing data and long-distance controlling.This paper introduces the theory and way on the serial communication between S7-200 PLC and host computer based on VB.

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Available abstract

The PLC of SIEMENS SIMATIC S7-200 series is widely suit for small and middle controlling systems.The excellent communication ability makes itself to be used wider and wider.In the fields of modern industrial controlling,PLC is used to collect,calculate and control every kind of signals and data,while the host computer can provide mutual interface,realizing the functions of managing data and long-distance controlling.This paper introduces the theory and way on the serial communication between S7-200 PLC and host computer based on VB.

Key concepts: Siemens, Simatic S5 PLC, Serial communication, Host (biology), Interface (matter), Computer science, Operating system, Embedded system

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