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Method for detecting data corruption during data transmission via a fail-safe communication connection

一种通信连接、识别数据的技术，应用在传输数据组织以避免错误、基于链路质量的传输修改、无线通信等方向，能够解决不能够被可靠地识别等问题

Active Publication Date: 2022-02-15
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] All error observations have been addressed in the Profisafe standard V2.6.1, however with the disadvantage that errors cannot be reliably identified if they occur in data structures

Method used

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  • Method for detecting data corruption during data transmission via a fail-safe communication connection
  • Method for detecting data corruption during data transmission via a fail-safe communication connection
  • Method for detecting data corruption during data transmission via a fail-safe communication connection

Examples

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Embodiment Construction

[0024] figure 1 A mapping table of a data structure 20 is shown having a first data type 21 , a second data type 22 , a third data type 23 , a fourth data type 24 and a fifth data type 25 . Correspondingly, the data structure 20 includes five structural elements (Boolean, Integer, DoubleInteger, Word, DWord). Each of the data types 21 , . . . , 25 is assigned a representative value 30 unambiguously. The data type Boolean has a representative value of 17, the data type Integer has a representative value of 89, the data type Double has a representative value of 47, the data type Word has a representative value of 91 and the data type DWord has a representative value of 50.

[0025] The data structure A is for example built up of four data types and has the sequence: Boolean, Integer, Boolean, Int, respectively, the data type Boolean is assigned the representative value 17 and the data type Integer is assigned the representative value 89 . If the checksum is now formed via the...

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PUM

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Abstract

The invention relates to a method for detecting data corruption during the transmission of data via a fail-safe communication link (1) between a first automation component (11) and a second automation component (12) of industrial control engineering In order to protect the data structure (20) when transmitting the data structure (20), an additional structure checksum (CRC STRUCT ), where the data types (21, ..., 25) are assigned representative values ​​(30), and a structural checksum (CRC STRUCT ).

Description

technical field [0001] The invention relates to a method for detecting data corruption during the transmission of data via a fail-safe communication link between a first automation component and a second automation component of industrial control engineering, wherein during the transmission of the data structure in order to protect the data to be transmitted The data structure in the telegram forms a checksum of the telegram not only on the part of the first automation component but also on the part of the second automation component, the data structure then comprising different data types. Background technique [0002] The invention relates to the technical field of fail-safe communication, which is mainly used for communication between field devices, control components and similar devices in industrial process automation or manufacturing automation. Such fail-safe communication, also referred to as F-communication, is used in particular in safety-related applications, espe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/004H04L1/0078H03M13/09H04L1/0061H03M13/096H04L69/22G06F11/1004H04W16/14H04L1/0009H04W72/0446H04W48/12H04W72/044H04W72/0453H04W74/0833H04L5/0098H04W72/23
Inventor 约翰内斯·胡贝特马库斯·洛伦奇克托马斯·马库斯·迈尔阿莱斯·格杰尔克斯尼古·米凯利斯克里斯托弗·舍尔赖因哈德·瓦特泽宁
Owner SIEMENS AG