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A method for realizing conversion between snmp protocol and opc protocol of industrial switch

An industrial switch and protocol conversion technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc.

Active Publication Date: 2011-12-21
东土科技(宜昌)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the wide variety of field devices and the continuous upgrading of products, it often brings a huge workload to users and software developers
Usually this cannot meet the actual needs of the work, and system integrators and developers urgently need a plug-and-play device driver with high efficiency, reliability, openness, and interoperability.

Method used

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  • A method for realizing conversion between snmp protocol and opc protocol of industrial switch
  • A method for realizing conversion between snmp protocol and opc protocol of industrial switch
  • A method for realizing conversion between snmp protocol and opc protocol of industrial switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] 1.1 Message format

[0012] Head+body

[0013] 1.1.1 Message header

[0014] / / Qx message header structure

[0015] typedef struct

[0016] {

[0017] Byte bVerInfo; / / Qx interface version information (0-255): each value corresponds to a version

[0018] This number, the default is 1

[0019] Byte bRMid; / / management entity identification

[0020] Byte bActionId; / / management entity interface identifier

[0021] Byte bOption; / * currently only use the lowest one bit,

[0022] Bit0 - Determine whether the command needs to be answered (general commands need to be answered)

[0023] Answer): 1: Response is required; 0: Response is not required;

[0024] * /

[0025] DWord dwSerialNo; / / The unique representation number of the Qx command, which is generated by the OPC server

[0026] (0 cannot be generated)

[0027] DWord dwDstAddr; / / The destination address of the message, which is the device ID w...

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PUM

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Abstract

The invention relates to a method for converting between SNMP protocol and OPC protocol of industrial switch data. The method defines the format of a message converted between the SNMP protocol and the OPC protocol of the industrial switch data and a manner of realizing an OPC server in a network administration system based on the SNMP protocol; and defines the variables of network characteristics of an industrial switch based on OPC protocol. The method further simplifies the industrial switch in industrial field management, and provides a new method for developing industrial switch management systems.

Description

technical field [0001] The invention relates to the conversion of two management modes of the industrial switch, that is, the conversion based on the SNMP protocol to the OPC management protocol; and the configuration and management of the industrial switch in the field of industrial control. Background technique [0002] The full name of OPC is OLE for Process Control, and its appearance has established a bridge for Windows-based applications and on-site process control applications. In the past, in order to access the data information of field devices, each application software developer needs to write a dedicated interface function. Due to the wide variety of field devices and the continuous upgrading of products, users and software developers often have a huge workload. Usually this cannot meet the actual needs of the work, and system integrators and developers are in urgent need of a plug-and-play device driver with high efficiency, reliability, openness, and interoper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L12/66H04L12/24
Inventor 刘强陈凡民马化一薛百华
Owner 东土科技(宜昌)有限公司