Abstract

In order to achieve the temperature control accuracy of the finishing line drying system, a PID control system based on MCGS and PLC is proposed. Using MCGS configuration software to edit the touch screen picture, Siemens PLC hardware configuration and programming, PID control algorithm to realize the conversion of analog and digital quantity, as well as the communication design between the upper computer (PC) and PLC and touch screen. Through the practical verification of assembly and debuggin, the control of the given value ± 5 °C of the drying system temperature of the finish line is realized.

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