Design of the Modbus Communication through Serial Port in QNX Operation System

Sen Xu; Haipeng Pan; Jia Ren; Jie Su

doi:10.1109/CCCM.2008.271

Computing, Communication, Control and Management, ISECS International Colloquium on

Design of the Modbus Communication through Serial Port in QNX Operation System

Year: 2008, Volume: 2, Pages: 434-438

DOI Bookmark: 10.1109/CCCM.2008.271

Authors

Sen Xu
Haipeng Pan
Jia Ren
Jie Su

Abstract

This paper presents a general design method on serial interface device driver, which is based on the analysis of Modbus protocol and QNX Operation System (QNX OS) device driver architecture. Further, the paper specifies serial port communication in C program under QNX OS, and tests its communication with SIEMENS S7-200 PLC. The test result has proved that the method is real-time, stable, and reliable.

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Design of the Modbus Communication through Serial Port in QNX Operation System

Authors

Abstract

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