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Method for transferring user data

A useful data and sender technology, applied in the direction of transmission system, digital transmission system, data exchange network, etc., to achieve the effect of fast transmission

Inactive Publication Date: 2013-06-19
GE ENERGY POWER CONVERSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for arbitration, i.e. for allocating time slots for sending useful data, these protocols require special hardware and / or require additional computing devices or network nodes

Method used

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  • Method for transferring user data
  • Method for transferring user data
  • Method for transferring user data

Examples

Experimental program
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Embodiment Construction

[0023] figure 1 A schematically illustrated protocol stack 2 is shown. Origin computing device 4 , target computing device 6 and further target computing device 8 are shown in the vertical direction. The source computing device 4 is physically connected to the two target computing devices 6 and 8 via a schematically shown communication channel 10 .

[0024] Computing devices 4 , 6 and 8 are, for example, process control computers of an automation system. Computing devices 4, 6 and 8 form an Ethernet network. Of course, it is also possible for only the two computing devices 4 and 6 to be connected to each other and form an Ethernet network.

[0025] The protocol stack 2 is composed of an application layer 12 , a lower-level communication layer 14 and a lower-level Ethernet layer 16 , wherein the layers 12 , 14 and 16 are each arranged horizontally.

[0026] According to the arrow 18 , useful data are to be transmitted from a source application 20 of the source computing dev...

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Abstract

The method involves connecting source computing device (4) and target computing devices (6,8) by Ethernettechnology. The Ethernet message having user data is produced by the source computing device and sent to target computing devices. The target media access control (MAC) address is written (36) into the MAC target address field of the Ethernet message while producing the Ethernet message. The Ethernet message is transmitted corresponding to the fixed time span. Independent claims are included for the following: (1) computer program for transmitting user data from source application of source computing device to target application of target computing devices; (2) process computer for automation system; (3) memory medium for process computer; and (4) Ethernet network.

Description

technical field [0001] The invention relates to a method for transmitting useful data according to the preamble of claim 1 . Background technique [0002] It is known to connect computing devices to each other by means of Ethernet technology to form an Ethernet network for data transmission. [0003] Furthermore, network protocols based on Ethernet technology are known which are used in the field of automation technology as so-called fieldbus systems. Examples for this are Ethernet POWER LINK or EtherCAT. EtherCAT is a registered trademark of Hans Beckhoff. These protocols require special hardware and / or additional computing devices or network nodes, in particular for arbitration, ie for the allocation of time slots for transmitting useful data. [0004] A method for data transmission is disclosed in DE 10 2005 008 503 B3, in which connection information about at least one transmission or forwarding destination in a block of data is received. The block is transmitted in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L1/00H04L29/12H04L45/74
CPCH04L12/413H04L2101/622H04L67/02
Inventor 赫尔穆特·杰本斯特赖特弗朗克·沃特
Owner GE ENERGY POWER CONVERSION
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