Pulping and papermaking control system and method, and control method of signal slope and regulating valve

Abstract

The invention relates to a pulping and papermaking control system and control method, a signal slope control method and a regulating valve control method. An external I / O point or an external interlocking signal module of the control system is assigned to an external array data module; the external array data module is a custom data structure body comprising input and output types; when the execution logic is called, the external array data module and a local variable module are assigned to a logic control module, the logic control module is executed through CPU, a logic operation result is returned to an external parameter module, or is assigned to the external I / O point or the external interlocking signal module to the external array data module of a next control loop; and data of the external array data module is transmitted to a control picture display function module through a communication link. The display function module comprises a picture control module, a picture recording module and a picture alarm module which are connected in parallel.

Description

technical field [0001] The invention relates to the technical field of high-speed paper machine automation control, in particular to a control system and method for pulp and paper making, a control method for a signal slope and a regulating valve. Background technique [0002] With the wide application of pulping equipment, the level of self-control is higher and higher, the control loop with more complete functions, and the process protection interlocking between equipment are more and more. In the 1990s, the programmable logic controller PLC began to enter the stage of industrialization and practicality. , through the bus technology + module, the signal is collected back to the programmable controller for synchronous centralized control, which greatly improves the reliability and stability of the pulp and paper overcurrent control, but the function blocks used are basic or shared , there is no special module for pulping and paper making. Moreover, at this stage, the call ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the unreasonable problem of the program structure existing in the prior art, and provide a reasonable program call mode, formulate a unified function module according to different devices, and the same type of application is only repeated calls or The control system of the transplanted pulp and paper making equipment, the control method of the pulp and paper making equipment, the logic control method of the regulating valve of the pulp and paper making equipment, the signal ramp function control method of the pulp and paper making equipment control system

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