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Modular control method and system based on CAN network

A technology of modular control and CAN bus, which is applied in the general control system, control/adjustment system, program control, etc., can solve the problems of low-level programming and debugging workload, etc., to improve anti-interference ability, reduce debugging workload, easy to control effects

Inactive Publication Date: 2020-02-28
AMPHENOL AORORA TECH (HUIZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a CAN network-based modular control method and control system in order to overcome the tedious bottom layer programming and debugging workload of the PLC control described in the prior art.

Method used

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  • Modular control method and system based on CAN network
  • Modular control method and system based on CAN network
  • Modular control method and system based on CAN network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A kind of modular control method based on CAN network of the present invention comprises the following steps:

[0047] S10. The touch screen selects a dedicated channel through the controller;

[0048] S20. The touch screen controls the dedicated module corresponding to the dedicated channel through the selected dedicated channel, and transmits the control command information to the controller through the dedicated module;

[0049] In this step, there is a special channel command setting menu on the touch screen. Through the command setting menu, you can select the control command information to be set for the special module, including: working mode, start-stop mode, working frequency and other command information. After completing the command setting The touch screen sends the special channel setting instruction information to the controller for analysis and processing;

[0050] S30. The controller analyzes and processes the instruction information set on the touch sc...

Embodiment 2

[0084] The differences between this embodiment and Embodiment 1 lie in that: the drive circuits in the dedicated modules are different, and the types of terminal devices connected are different. When the terminal equipment is a servo motor or a stepper motor, it needs to be controlled by a pulse width modulation PWM signal. This type of equipment corresponds to a dedicated module drive circuit, such as Image 6 Shown:

[0085] The Input input port in the drive circuit is connected to the PWM pulse width modulation output port of the dedicated module MCU, and the Output output port in the drive circuit is connected to the PWM pulse width modulation input port of the terminal device.

[0086] By changing the PWM pulse width modulation signal of the Input input port, the PWM pulse width modulation signal of the Output output port of the drive circuit changes accordingly, thereby realizing the operation control of servo motors, stepping motors and other equipment.

[0087] In thi...

Embodiment 3

[0089] The difference between this embodiment and Embodiment 1 and Embodiment 2 is that the drive circuit in the dedicated module includes the drive circuit described in Embodiment 1 and Embodiment 2 at the same time, that is, the drive circuit of the dedicated module includes: solenoid valve or relay Such as switching equipment drive circuit and servo motor, stepper motor equipment drive circuit. The dedicated module can simultaneously realize the drive control of switching devices such as solenoid valves or relays, servo motors, and stepping motors.

[0090] In this embodiment, the action control of switching devices such as solenoid valves or relays, and the operation control of devices such as servo motors and stepping motors can be realized simultaneously through the dedicated modules. Using MCU as the main control unit can conveniently and quickly control the output port and PWM pulse width debugging to quickly and timely respond to changes in the operating status of dif...

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PUM

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Abstract

The invention discloses a modular control method and system based on a CAN network, and relates to the technical field of modular control of CAN networks. The modular control system of the CAN networkcomprises a touch screen, a controller connected with the touch screen and a plurality of special modules, the controller is connected with the special modules through a CAN bus, and the controller communicates with the special modules through the CAN bus. The method and system have the advantages that the special modules realize the tedious control link of the bottom layer, the CAN bus is used to form the combination of the control system, tedious programming of the bottom layer is avoided, system resources are saved, the efficiency is high, and the cost is low; and simple wiring enables thesystem to be simple, and the debugging burden is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of CAN network modular control, in particular to a CAN network-based modular control method and control system. Background technique [0002] In traditional industrial applications, the control of stepping motors, servo motors, relays, solenoid valves and other equipment requires an independent PLC for control. Various equipment requires different PLC underlying programming, resulting in redundant software codes and various versions. , The control process is complicated, and the debugging workload is heavy; when the equipment is installed in different areas, cumbersome wiring operations are required, resulting in waste of resources and difficult unified maintenance. [0003] In addition, the control of servo motors and stepping motors is all pulse control, and pulse control requires a large amount of PLC resources, especially in the case of a large number of servo or stepping motors, resulting in a decrease ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCG05B19/41845Y02P90/02
Inventor 甘正中陈良元
Owner AMPHENOL AORORA TECH (HUIZHOU) CO LTD