Design and Implementation of Portable Data Acquisition Unit in Process Control and Supervision Applications
نویسندگان
چکیده
Paper deals with design and implementation of portable data acquisition unit based on 8-bit microcontroller Freescale 68HC908GP32 in process control and supervision applications. Its hardware design is adopted to fulfill high reliability and immunity against industrial environment, high precision and compact dimensions. Communication with supervision system is performed via standard RS232 interface utilizing universal ASCII-based communication protocol which is supported by number of software environments. In order to improve development of new software applications with this device a support program libraries for Visual C++, Control Web and Matlab/Simulink was created. Correct function of the data acquisition device and support software libraries were tested on educational model of heating plant with time delay in Matlab 6.5 and Control Web environments. Key-Words: Data acquisition, process control, Control Web, Matlab, program libraries, 68HC908GP32
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