QNX操作系统中Modbus串口通信的设计

2008 ISECS International Colloquium on Computing, Communication, Control, and Management Pub Date : 2008-08-03 DOI:10.1109/CCCM.2008.271

Sen Xu, Haipeng Pan, Jia Ren, Jie Su

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引用次数: 3

摘要

本文在分析Modbus协议和QNX操作系统(QNX OS)设备驱动架构的基础上，提出了一种串行接口设备驱动的通用设计方法。在QNX操作系统下用C语言编写串口通信程序，并对其与西门子S7-200 PLC的通信进行了测试。试验结果表明，该方法实时性好、稳定可靠。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

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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2008 ISECS International Colloquium on Computing, Communication, Control, and Management

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