Title :
Design of the Modbus Communication through Serial Port in QNX Operation System
Author :
Xu, Sen ; Pan, Haipeng ; Ren, Jia ; Su, Jie
Author_Institution :
Dept. of Autom. Control, Zhejiang Sci-Tech Univ., Hangzhou
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.
Keywords :
C language; device drivers; operating systems (computers); protocols; software architecture; C program; Modbus communication; Modbus protocol; QNX operation system; device driver architecture; serial interface device driver; serial port; Communication system control; Control systems; Delay effects; Design methodology; Hardware; Programmable control; Protection; Protocols; Real time systems; Testing; Modbus; QNX; device driver; serial port communication;
Conference_Titel :
Computing, Communication, Control, and Management, 2008. CCCM '08. ISECS International Colloquium on
Conference_Location :
Guangzhou
Print_ISBN :
978-0-7695-3290-5
DOI :
10.1109/CCCM.2008.271
