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Communication abnormality detecting apparatus, communication abnormality detecting method and program

A technology of communication abnormality and detection device, which is applied in transmission monitoring, electrical components, transmission systems, etc., can solve the problem of not always observing the communication line, etc., and achieve the effect of suppressing the occurrence of faults

Active Publication Date: 2016-02-10
WEST ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In PROFIBUS communication, there is no provision in the standard specification to always observe the communication line

Method used

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  • Communication abnormality detecting apparatus, communication abnormality detecting method and program
  • Communication abnormality detecting apparatus, communication abnormality detecting method and program
  • Communication abnormality detecting apparatus, communication abnormality detecting method and program

Examples

Experimental program
Comparison scheme
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Embodiment

[0034] figure 1 It is a block diagram showing an example of the configuration of a communication system according to an embodiment of the present invention. The communication system 1 includes: a master device 3 (an example of a "master device" in the claims of the present application), a plurality of slave devices 5 1 ,...,5 N (An example of the "slave device" in the claims of the present application) (N is a natural number of 2 or more. Hereinafter, subscripts may be omitted.) and a communication abnormality detection device 7 (an example of the "communication abnormality detection device" in the claims of the present application) .

[0035] exist figure 1 Among them, the master device 3 and the slave device 5 are devices that perform PROFIBUS communication and devices that perform serial communication. Master 3 and Slave 5 1 communicate directly (i.e., without going through another slave) (slave 5 1 This is an example of the "first slave" in the claims of the present ...

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PUM

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Abstract

Provided are communication abnormality detecting apparatus and the like which, even when such as PROFIBUS communication is not prepared to always observe a communication line in standard specifications, can also automatically detect abnormality of the communication line. A detecting portion (31) of the communication abnormality detecting apparatus (7) always observes communication voltage of the communication line between a host device (3) and slave devices (51). A notifying portion (33), when the communication voltage is lower than a set value, notifies the alarm besides, and also notifies the host device (3) of the ID of the slave device recognized as a communication object. The host device (3) displays abnormality at a display portion (15) and displays maintenance advance notice of a specific position, and makes a display portion (23) of the slave device (51) determined by the ID display to display the maintenance advance notice. And thus, even for such as the PROFIBUS communication, maintenance can also be increased.

Description

technical field [0001] The present invention relates to a communication abnormality detection device, a communication abnormality detection method, and a program, and particularly relates to a communication abnormality detection device and the like for detecting an abnormality in communication between a master device and a plurality of slave devices. Background technique [0002] In recent years, in order to control a plurality of electric valve actuators (hereinafter referred to as "VA"), for example, a PROFIBUS communication system is used. In PROFIBUS communication, a master device is serially connected to a plurality of VAs to perform communication. In PROFIBUS communication, there is no provision in the standard specification to always observe the communication line. When operating a VA group using such PROFIBUS communication, a dedicated analyzer and / or a communication analysis device is regularly connected to monitor the communication line. [0003] Patent Document ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00
Inventor 久木田大辅福田真森正和
Owner WEST ELECTRIC CO LTD