Description: At present, in our country in the field control bus, RS- 485 using the most common. RS- 485 bus in the common-mode output voltage
7 v to+ 12 v, have the ability to inhibit common-mode interference, maximum 10 MBPS speed of data transmission, when the baud rate to 1200 BPS transmission distance theory can reach a maximum of 15 km. RS- 485 network of simple equipment, easy to implement, long transmission distance, convenient maintenance and been adopted by many inverter manufacturers. Source based on RS- 485 converter serial communication with a PC hardware features, communication protocol and software implementation, the experiment shows that the communication software is stable and reliable, can be intuitive to watch the actual running condition of frequency converter, and can be convenient for multiple sets of parameters setting and rewrite. Through this software, greatly convenient for engineers and customer manipulation and control of the inverter. The source based on 485 serial po
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pc控制变频器\Form1.frm
............\Form1.frx
............\工程1.vbp
............\工程1.vbw
pc控制变频器
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