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Method for realizing programmable real-time logic in programmable logic controller and system thereof

A technology for programming logic and controllers, which is applied in the direction of program control and electrical program control in sequence/logic controllers, and can solve problems such as inability to program PLD

Inactive Publication Date: 2014-07-02
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention intends to solve the problem that the customer cannot program the PLD in order to obtain the advantage of flexible functionality

Method used

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  • Method for realizing programmable real-time logic in programmable logic controller and system thereof
  • Method for realizing programmable real-time logic in programmable logic controller and system thereof
  • Method for realizing programmable real-time logic in programmable logic controller and system thereof

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Embodiment Construction

[0019] The present invention will be fully described below with reference to the accompanying drawings showing embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.

[0020] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in idealized or extremely formalized...

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Abstract

The invention provides a method for flexibly realizing a programmable real-time logic task in a programmable logic controller PLC. The PLC comprises a microprocessor and a programming logic device PLD. The method comprises that a PLD program is added into PLC programming software in a personal computer in a functional block mode so that a PLC program comprising the PLD program is obtained; an interface between the PC and the microprocessor of the PLC is utilized, the PLC program comprising the PLD program is downloaded to the microprocessor of the PLC by the PC, and the PLD program is isolated from the PLC program comprising the PLD program by the microprocessor; and the interface between the microprocessor and the PLD is utilized, and the microprocessor of the PLC downloads the PLD program to the PLD. According to the method, the PLD is applied to the PLC, and a user can perform programming on the PLD via a functional block (which is predefined by a manufacturer or generated by utilizing an additional tool via the user) so that flexible real-time logic can be realized. Some predefined logic or special logic can be provided according to requirements of the user.

Description

technical field [0001] The present invention relates to a method for flexibly realizing programmable real-time logic in a programmable logic controller, and more specifically, relates to a programmable logic controller that utilizes a personal computer to realize programmable real-time logic tasks and combinational logic tasks. A method and system for realizing flexible real-time logic in a programmable logic controller. Background technique [0002] When referring to low-end PLC (Programmable Logic Controller, Programmable Logic Controller), there are always market sales personnel who say that the response time of HSC / PTO (High Speed ​​Count / Pulse Train Output, high-speed count / pulse train output) of current PLC is relatively low. long. Existing techniques try to solve this using custom CPUs, but cannot fully meet the requirements. [0003] The existing method is to use PLD (Programmable Logic Device, programmable logic device) to perform some high-speed logic, but the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/05
Inventor 谢鉴
Owner SCHNEIDER ELECTRIC IND SAS