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In this paper, we propose a novel strategy to design a reliable and practical constant selling oil automatic system,through the use of S7-226PLC, flow meter, inverter and other hardware devices. A kind of fuzzy PID control algorithm was researched to guarantee the system accuracy. The fuzzy PID controller can control the inverter output frequency by changing the voltage of the inverter and self-tuning...
The system applies PLC of OMRON CJ1M-series as a lower control computer to conduct a field control in the KK Filter system of Jilin Chemical Fiber group. It utilizes King view 6.53 for PC monitor. The paper mainly describes the application and the communication of PLC and inverter in this system. Then the design of operating screen in PC, the attention about the installation of communication lines...
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