Multi-protocol industry Ethernet adapter

Abstract

The invention relates to a multi-protocol industrial Ethernet adapter, which is characterized in that: the multi-protocol industrial Ethernet adapter comprises a processor, an Ethernet controller, an external expanding memory, a serial-port controller, a coupled isolation filter, an RJ45 interface, a DB9 joint and direct-current power supply. The connection relationship of the circuits is as follows: the processor serves as a center and is interconnected with the Ethernet controller, the external expanding memory and the serial-port controller and the Ethernet controller is interconnected with the coupled isolation filter; the coupled isolation filter is interconnected with the RJ45 interface and the serial-port controller is interconnected with the DB9 joint. The multi-protocol industrial Ethernet adapter further comprises a communication protocol software and a PC-based configuration software. The adapter is provided with an Ethernet port and a serial port. The Ethernet side simultaneously delivers the support for the Modbus / TCP and EtherNet / IP two protocols and the serial port side delivers the support for the Modbus RTU protocol and can access the field device of the Modbus interface to the Modbus / TCP or Ethernet / IP industrial Ethernet, thus resulting in the equipments being more flexibly networked and simplifying and lowering the workload and cost for accessing the original industrial equipments to the new industrial Ethernet.

Description

technical field [0001] The invention relates to a multi-protocol industrial Ethernet adapter, which belongs to the technical field of field bus control. Background technique [0002] Industrial Ethernet adapter is a new type of industrial Ethernet network access product in the field of industrial control, which can enable existing industrial field control equipment to be connected to industrial Ethernet. [0003] As the industrial automation system is developing toward distributed and intelligent real-time control, users have increasingly urgent requirements for a unified communication protocol and network; however, the current fieldbus cannot meet these requirements, and various fieldbuses are incompatible with each other. The company's controllers cannot achieve high-speed real-time data transmission, and there is a protocol gap in the information network, which leads to the emergence of "automation islands", prompting people to start looking for new solutions and pay atte...

AI Technical Summary

Problems solved by technology

[0008] Combined with WEB functions, the factory's e-commerce, material supply chain, and ERP form a unified whole; in the past, Ethernet failed to enter the field of industrial control, mainly because of the CSMA / CD (Carrier Sense Multiple Access with Collision Detection, with Carrier sense multi-point access for collision detection) is a non-deterministic or random communication method, which cannot meet the requirements of industrial control places with high real-time and deterministic requirements.

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