Implementing method of PLC controller for supporting multiple CPU structures

Abstract

The invention discloses a method for realizing a PLC controller which supports a plurality of CPU structures. The invention comprises two parts, namely core structure and application design. The core structure part comprises a PLC directive framework, a PLC engine structure and a CPU platform structure; the PLC directive framework realizes the converting of PLC directive arithmetic and assembly code; the PLC engine structure realizes the customization of universally used engine structure and framework; the CPU structure realizes the customization and description of various CPU attributes. The application design part comprises two parts, namely hardware structuring platform and software design platform; the hardware design platform customizes and describes various hardware resources according to the CPU structure of application and core part, including I / O, interruption, timer and configurable soft components, and the like, the software design platform realizes IL directive programming and ladder chart design and provides a logic control program designing platform for a user; the customization and development of the PLC controller is realized by the combination of the user logic control program and the result of CPU structuring by the hardware structuring platform.

Description

technical field [0001] The invention relates to a PLC controller construction technology, in particular to a method for realizing a PLC controller supporting multiple CPUs. Background technique [0002] As one of the three pillars of modern industrial control equipment, programmable logic controller (ProgrammableLogic Controller, PLC) is widely used in industrial control because of its high cost performance. However, due to the use of embedded chips in the programmable logic controller, the control program can only be developed for the specific chip used by the PLC. Due to the diversity of embedded chip brands and models, it is difficult to transplant user programs. After replacing the embedded chip, it is necessary to repeatedly develop the control program, which makes the development efficiency low. Contents of the invention [0003] The purpose of the present invention is to aim at the deficiencies of the prior art, provide a kind of realization method supporting multi...

AI Technical Summary

Problems solved by technology

However, due to the embedded chip used in the PLC, the control program can only be developed for the specific chip used in the PLC

Due to the diversity of embedded chip brands and models, it is difficult to transplant user programs. After replacing the embedded chip, it is necessary to repeatedly develop the control program, which makes the development efficiency low.

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