Method for achieving combined command in ePLC (embedded programmable logic controller) figure programming platform

A technology of combining instructions and implementation methods, applied in the direction of program control devices, etc., can solve problems such as repeated writing, and achieve the effect of improving writing efficiency

Inactive Publication Date: 2015-03-11
HANGZHOU DIANZI UNIV
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Problems solved by technology

But it needs to be written repeatedly at design time

Method used

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  • Method for achieving combined command in ePLC (embedded programmable logic controller) figure programming platform
  • Method for achieving combined command in ePLC (embedded programmable logic controller) figure programming platform
  • Method for achieving combined command in ePLC (embedded programmable logic controller) figure programming platform

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Embodiment Construction

[0016] A method for realizing combined instructions in the ePLC diagram programming platform of the present invention includes an editing method for the combined instructions, a saving method, a graphical control representation method, a program design method based on the combined instructions, and a program compiling method including the combined instructions. The specific implementation process is as follows:

[0017] 1. Editing method of combination command

[0018] The ePLC graphic programming platform uses IL instruction set and graphical language (such as LD, SFC, etc.) to realize program writing, and the program development can be completed through IL instruction or LD language. Combined instruction is to combine several IL instructions into a functional module, and the combined instruction function module can be used as an instruction in the program.

[0019] In the combined instruction editing page of the ePLC graphic programming platform, first specify the combined ...

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Abstract

The invention relates to a method for achieving a combined command in an ePLC (embedded programmable logic controller) figure programming platform. The method comprises the following steps: firstly, finishing compiling of a combined command in a combined command editing environment, examining the form of the combined command which is compiled by a user by a system after the compiling of the combined command is ended; storing the combined command after approval of examination, generating a combined command module, and adding the combined command module to a figure programming platform. The user can finish development of ePLC control program according to the combined command which can be generated through dragging in the figure programming platform. The combined command needs to be independently processed when being compiled; a final executable file is finally generated together with a part of other programs; the user can conveniently encapsulate common functions according to the application requirements through customized combined command; the design of a specific function can be finished by only dragging the combined command when the method disclosed by the invention is in use; therefore, the design efficiency of the program is greatly improved; meanwhile, the readability and the maintainability of the program are also improved.

Description

technical field [0001] The invention belongs to the field of industrial control, in particular to a method for realizing combined instructions in an ePLC diagram programming platform. Background technique [0002] As one of the three pillars of modern industrial control equipment, Programmable Logic Controller (PLC) is widely used in industrial control because of its high cost performance. However, in recent years, with the increasingly complex functions of equipment and the need for enterprises to master core intellectual property rights, more and more enterprises have gradually adopted dedicated controllers instead of general-purpose PLCs. The programming method of the dedicated controller is mainly in assembly or C language programming. In order to improve the efficiency of program development and fully combine the advantages of PLC and dedicated controllers, ePLC technology has been developed. ePLC is the abbreviation of embedded PLC, which adopts PLC graphical develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/44
Inventor 邬惠峰严义
Owner HANGZHOU DIANZI UNIV
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