Industrial control type automatic network communication protocol converter and communication protocol conversion method
An automation network and communication protocol technology, which is applied in the field of industrial control automation network communication protocol converter and communication protocol conversion, can solve the problems of slow transmission rate, high bit error rate, and inflexibility, and achieve high communication reliability and flexible implementation The effect of preventing data frame overlap or omission
Active Publication Date: 2016-05-25
江苏航天龙梦信息技术有限公司
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Problems solved by technology
Although this kind of communication protocol converter transplanted with the OPCUA protocol stack can realize the communication between some corresponding different devices, it has deficiencies such as inflexibility, high bit error rate, and slow transmission rate, which cannot meet the needs of modern industrial control systems. For the needs of different application environments
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[0035] Please refer to figure 1 , the present embodiment provides an industrial control automation network communication protocol converter 10, including: a microprocessor (MCU) 101 and a power circuit 102 connected to the microprocessor 101, a power indicator light 103, and an upper interface expansion circuit 104 , a lower end interface expansion circuit 105 , a converter status indicator light 106 and a memory 107 .
[0036] Wherein, the microprocessor 101 and the upper interface expansion circuit 104 are the core devices of the industrial control automation network communication protocol converter 10 of this embodiment, and the microprocessor 101 is the core device of the entire industrial control automation network communication protocol converter 10 The control center adopts STM32F103 series chip, which includes Ethernet MAC layer controller, CAN controller and USART serial interface, supports Ethernet, CAN bus, RS231 bus and RS485 bus expansion, and can complete informa...
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The invention discloses an industrial control type automatic network communication protocol converter and a communication protocol conversion method. The network communication protocol converter comprises a microprocessor, an upper end connector expanding circuit, a lower end connector expanding circuit, a memory and a power supply circuit, wherein the upper end connector expanding circuit comprises a serial communication interface, an Ethernet interface, a hardware protocol stack chip, a software protocol stack chip and a switching switch for switching communication of the hardware protocol stack chip and the hardware protocol stack chip, and an upper computer; the serial communication interface is used for realizing connection of the microprocessor and a Modbus network; the Ethernet interface is used for realizing connection of the microprocessor and industrial Ethernet; and the lower end connector expanding circuit comprises a plurality of serial communication interfaces which are in communication connection with a plurality of lower computers one by one. With the adoption of the industrial control type automatic network communication protocol converter, the mutual conversion of free protocols and Modbus RTU (Remote Terminal Unit) protocols or TCP / IP (Transmission Control Protocol / Internet Protocol) can be realized, and the requirements of field-grade control and remote control are met.
Description
technical field [0001] The invention relates to the technical field of industrial automation control, in particular to an industrial control automation network communication protocol converter and a communication protocol conversion method. Background technique [0002] With the increasing degree of industrial modernization, modern industrial control systems have developed into a control network with a complex structure composed of various sensors, controllers, actuators and various subsystems with specific functions, such as, Common sensing modules in modern industrial control systems are composed of sensors, converters and transmitters (there may even be small controllers for front-end data processing); data acquisition and monitoring systems are key subsystems in control systems, usually It is also composed of a large number of sensing modules, transmitters and controllers; and modern industrial control systems generally use programmable controllers (Programmable Controll...
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IPC IPC(8): H04L29/06
CPCH04L69/08
Inventor 赵一鹤葛洲宏章飞陈星星封晓丽王欢
Owner 江苏航天龙梦信息技术有限公司
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