The Design of Teaching Experimental System about Measurement Control Network based on Virtual Instrument
A measurement control network experimental system applied to teaching based on virtual instrument technique is designed.The experimental system adopts basic framework of one master and multi slaves.The host node is made up of the PC,and some single chip computer nodes consist of slaves,which can communicate with host computer by RS232 CAN/485 converter module.The host node is programmed by LABVIEW software,its main functions are to transmit the command,accept,display and store the data and state information from slave nodes.The slave nodes are programmed by assembly language and can realize RS232, EIA485 or CAN communication and I/O operations only with different software codes and without any changes of hardware.