Title :
Design and realization of an intelligent data acquisition and display system based on AT89C52 and modbus
Author :
Cui, Bo ; Xu, Guangbin
Author_Institution :
Coll. of Inf., Hebei Polytech. Univ., Tangshan, China
Abstract :
In order to achieve real-time remote data acquisition and display, an intelligent data acquisition system based on the Modbus communication protocol and RS-485 bus is designed, which is capable of gathering PT100 signals or the 4 ~ 20 mA industry standard signals. Its hardware system mainly consists of the MCU, the A/D converter, and the modules for communication, storage, power supply, I/O display and reset watchdog, etc. It can save pre-defined parameters, gather the analog data on-site and convert them into digital data for processing, with rich communication functions to the main computer. Its low power consumption, strong anti-interference ability and easy integration options make the system perfect for deployment in general industrial sites to meet various user needs.
Keywords :
data acquisition; display instrumentation; field buses; protocols; A/D converter; AT89C52; I/O display; Modbus communication protocol; PT100 signals; RS-485 bus; analog data; anti-interference ability; communication functions; data display system; digital data; hardware system; intelligent data acquisition; power supply; real-time remote data acquisition; reset watchdog; Communication industry; Communication standards; Data acquisition; Displays; Electricity supply industry; Hardware; Intelligent systems; Protocols; Real time systems; Signal design; MCU; Modbus communication protocol; data acquisition; data display;
Conference_Titel :
Computing, Communication, Control, and Management, 2009. CCCM 2009. ISECS International Colloquium on
Conference_Location :
Sanya
Print_ISBN :
978-1-4244-4247-8
DOI :
10.1109/CCCM.2009.5267467
