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Device controller reconfigurable system and implementation method based on ethercat protocol

A technology for equipment controllers and implementation methods, applied in transmission systems, electrical components, etc., can solve problems such as deficiencies, achieve the effects of shortening downtime, ensuring online reconfigurability, and improving flexible manufacturing capabilities

Active Publication Date: 2022-03-29
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects and deficiencies of the existing technology and solve the deficiencies in the reconfigurability of the device layer in the existing reconfigurable manufacturing system, the present invention provides a reconfigurable implementation method of the device controller based on the EtherCAT protocol, which makes up for It overcomes the defect of insufficient reconfigurability of existing RMS at the hardware level, further improves the dynamic reconfiguration performance of RMS, and enhances its flexible manufacturing capabilities

Method used

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  • Device controller reconfigurable system and implementation method based on ethercat protocol
  • Device controller reconfigurable system and implementation method based on ethercat protocol
  • Device controller reconfigurable system and implementation method based on ethercat protocol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] like figure 1 As shown, this embodiment provides a device controller reconfigurable system based on the EtherCAT protocol, including an EtherCAT master station, an EtherCAT slave station, a controller kernel reconfiguration and a controller server;

[0048] The EtherCAT master station stably controls the EtherCAT slave station when the system is working. The reconstruction monitoring sub-module, master station reconstruction sub-module, and reconstruction management sub-module are embedded in the EtherCAT master station, but their functions are independent of the EtherCAT master station. They are responsible for monitoring the system. Reconfigurable requirements, start and manage the reconfiguration process of the master station. The refactoring management sub-module is used to manage the refactoring of each part, respectively start the master station refactoring, kernel refactoring, and server refactoring in sequence. The reconfiguration monitoring sub-module is used ...

Embodiment approach

[0050] like figure 2 As shown, this embodiment provides a reconfigurable implementation method of a device controller based on the EtherCAT protocol, including the following steps:

[0051] S1: The EtherCAT master station periodically sends control messages to control the EtherCAT slave station, the EtherCAT slave station returns the message to the EtherCAT master station, and the reconstruction monitoring sub-module of the EtherCAT master station performs periodic reconstruction monitoring tasks;

[0052] In this embodiment, the real-time monitoring process of the master station reconfiguration monitoring submodule of step S1 works when the equipment is in normal operation, and the EtherCAT master station periodically sends messages to control the work of the slave station. In addition to controlling the operation of each slave station by the read and write) message, a BRW (broadcast read) sub-message is also inserted. This message can monitor the change of the hardware stru...

Embodiment 3

[0069] This embodiment provides a storage medium, the storage medium may be a storage medium such as ROM, RAM, magnetic disk, optical disk, etc., and the storage medium stores one or more programs. When the programs are executed by the processor, the above-mentioned embodiment 2 is realized. A reconfigurable implementation method of a device controller based on the EtherCAT protocol.

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Abstract

The invention discloses a device controller reconfigurable system based on the EtherCAT protocol and an implementation method. The method includes the following steps: the EtherCAT master station monitors the change of the hardware topology structure while the EtherCAT master station works periodically. When a fault occurs, or devices are artificially added or removed, the controller detects changes in the hardware topology and initiates reconfiguration of the entire device controller. The reconfiguration of the device controller includes hardware reconfiguration, main station reconfiguration, control kernel reconfiguration and server reconfiguration. The reconfiguration process of the master station is parallel to the original work cycle, and the configuration of the new slave station structure can be completed without stopping the machine, and then the controller performs the reconfiguration process of the kernel and server in turn. The invention allows the controller to perform online rapid reconfiguration without affecting the work of the original normal slave station equipment, which makes up for the lack of reconfigurable capabilities of the existing reconfigurable manufacturing system (RMS) at the hardware level, and improves the dynamic reconfiguration of the RMS. The structural performance reduces its failure reaction time and enhances the flexible manufacturing capability of RMS.

Description

technical field [0001] The invention relates to the technical field of EtherCAT device controller reconfiguration, in particular to a reconfigurable system and implementation method of a device controller based on the EtherCAT protocol. Background technique [0002] Reconfigurable manufacturing system (RMS) is an important part of intelligent manufacturing. RMS can quickly respond to changes in production tasks, and adapt to new production tasks and cycles by quickly reorganizing and replacing the manufacturing system structure and its subunits. At present, RMS focuses on the reorganization of the system structure and process levels. Existing RMS involves a wide variety of manufacturing unit equipment, such as machine tools, robots, sensors, etc., usually from different manufacturers, and developers are often only allowed to Based on the existing functions of the provided device controller firmware, limited function expansion (such as integration of custom algorithms) and im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L41/0803H04L41/12H04L41/0654
CPCH04L41/0803H04L41/12H04L41/0654
Inventor 李迪王佳佳周楠唐浩张春华
Owner SOUTH CHINA UNIV OF TECH
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