Pulping and papermaking control system and method, and control method of signal slope and regulating valve
A pulp and papermaking and control system technology, applied in general control systems, program control in sequence/logic controllers, control/regulation systems, etc., can solve problems such as unreasonable program structures
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[0104] The present invention will be described in further detail below in conjunction with accompanying drawing:
[0105] see Figure 1 to Figure 4 As shown, the problem of unreasonable program structure to be solved by the present invention provides a more reasonable program call mode, and formulates unified function modules according to different devices. The same type of application is only repeated calls or transplants, and the structure is clear. The multiple background data of other PLCs is so complicated. In this control method, a paper machine is divided into two tasks for processing, and the CPU first reads all input images, scans and executes task 1 and task 2 in sequence. The process of executing task 1: Execute the time continuation module---communication data module---pressure routine----liquid level routine---finally to the motor routine, execute task 1 and return to Execute task 2, and start the execution of task 1 after task 2 is completed. The execution of ...
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