Zhiwei Guo, Cong Hu
Abstract
The article describes three usual manners and introduces about one Siemens S7-200PLC’s closed loop control system how to realize the PID , the principle of the PID digital controller, how to use the PID digital controller, an example about how to program with it, and how to convert the input-output variable.
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The article describes three usual manners and introduces about one Siemens S7-200PLC’s closed loop control system how to realize the PID , the principle of the PID digital controller, how to use the PID digital controller, an example about how to program with it, and how to convert the input-output variable.
Key concepts: PID controller, Siemens, Control theory (sociology), Closed loop, Control engineering, Control system, Loop (graph theory), Variable (mathematics)