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Protocol converting module and intelligent circuit breaker of Modbus and transmission control protocol (TCP)

A smart circuit breaker and protocol conversion technology, applied in the direction of data exchange, electrical components, transmission systems, etc. through path configuration, to achieve the effect of reducing hardware costs and development difficulties, stable and reliable performance, and expanding the scope of application

Active Publication Date: 2013-06-12
RENMIN ELECTRIC APPLIANCES GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the application of industrial field bus, the RS485 used by the Modbus protocol has a slight advantage in hardware cost and development difficulty, and it is still widely used in China, so it is unrealistic to completely abandon the Modbus bus at this stage

Method used

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  • Protocol converting module and intelligent circuit breaker of Modbus and transmission control protocol (TCP)
  • Protocol converting module and intelligent circuit breaker of Modbus and transmission control protocol (TCP)
  • Protocol converting module and intelligent circuit breaker of Modbus and transmission control protocol (TCP)

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Experimental program
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Effect test

Embodiment 1

[0031] (Embodiment 1, protocol conversion module)

[0032] Figure 1 to Figure 5 A specific implementation of the protocol conversion module in the present invention is shown, wherein figure 1 It is a block diagram of a circuit structure of the protocol conversion module in the present invention, figure 2 yes figure 1 A schematic circuit diagram of the protocol conversion module shown, image 3 yes figure 1 The main program flow chart of the protocol conversion module shown; Figure 4 yes figure 1 The flow chart of the parameter configuration program of the protocol conversion module shown; Figure 5 yes figure 1 The TCP communication implementation flow chart of the protocol conversion module shown.

[0033] The present embodiment is a kind of protocol conversion module of TCP and Modbus, including MCU module, external expansion memory connected to MCU module, communication status indicator module, reset and crystal oscillator circuit, Ethernet network transformer, 4...

Embodiment 2

[0050] (Embodiment 2, protocol conversion module)

[0051] This embodiment is basically the same as Embodiment 1, except that the indicated indicating unit also includes a liquid crystal display and a debugging button.

Embodiment 3

[0052] (Embodiment 3, intelligent circuit breaker)

[0053] Figure 6 to Figure 8 A specific embodiment of the intelligent circuit breaker in the present invention is shown, wherein Figure 6 It is a schematic diagram of the three-dimensional structure of the first structure of the intelligent circuit breaker in the present invention, Figure 7 yes Figure 6 A schematic diagram of a three-dimensional structure of the protocol conversion module in the smart circuit breaker shown; Figure 8 yes Figure 7 A schematic diagram of the three-dimensional structure of the protocol conversion module shown when viewed from another angle.

[0054] This embodiment is an intelligent molded case circuit breaker made by the above embodiment 2, see Figure 6 to Figure 8 , including a molded case circuit breaker body 1, a remote action actuator (located inside the upper cover, not shown in the figure) and the protocol conversion module 2 described in Embodiment 1; the molded case circuit b...

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Abstract

The invention discloses a protocol converting module and an intelligent circuit breaker of Modbus and a transmission control protocol (TCP). The protocol converting module comprises a microprogrammed control unit (MCU) module, an external expansion memory connected with the MCU module, a communication state identifying module, a reset and crystal oscillator circuit, an Ethernet network transformer, a 485 serial port receiving and sending chip, a direct current (DC) 5V - DC 3.3V direct current power converting module, a radio sonde (RS) 485 terminal connected with the 485 serial port receiving and sending chip, a RJ45 port connected with the Ethernet network transformer, and a DC 24V - DC 5V direct current power converting module connected with the DC 5V - DC 3.3V direct current power converting module. The intelligent circuit breaker comprises a plastic shell breaker body, a remote motion execution mechanism and protocol transmission modules mentioned above. The protocol converting module and the intelligent circuit breaker of the Modbus and the TCP enable a user to carry out real-time inspection and controlling of Modbus equipment through a TCP bus.

Description

technical field [0001] The invention belongs to the technical field of intelligent circuit breakers, and in particular relates to a Modbus and TCP protocol conversion module and an intelligent circuit breaker. Background technique [0002] In traditional industrial control, the communication between single-chip microcomputers and between single-chip microcomputers and computers has been realized by RS-232 or RS-485 serial communication mechanism. However, with the expansion of production scale, the increase of industrial control nodes, the increase of data transmission volume and the improvement of control complexity requirements, it is no longer suitable to use the serial communication mechanism for network communication, because the serial communication mechanism has certain limitations. Defects. The data transmission rate of serial communication is low, and its node polling control mechanism has poor real-time performance. With the improvement of control complexity and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40H04L29/06
Inventor 叶海武黄章武包志舟佘定辉洪青松
Owner RENMIN ELECTRIC APPLIANCES GROUP
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