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Physical layer diagnosis method and system for EtherCAT bus

A diagnostic method and diagnostic system technology, applied in transmission systems, bus networks, digital transmission systems, etc., can solve problems such as high cost and complicated operation, and achieve the effect of low cost, simple and reliable operation

Active Publication Date: 2021-04-30
PEITIAN ROBOTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no effective test scheme for the diagnosis of the physical layer of the EtherCAT bus in the 100Base-TX mode, although the patent CN101878456 discloses a circuit including a power supply, one or more devices, and a diagnostic system, and the monitoring device in the diagnostic system It is suitable for monitoring the physical layer characteristics of the circuit, but it needs to build a physical layer diagnostic test environment, and needs to add special diagnostic equipment, the operation is complicated and the cost is high

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  • Physical layer diagnosis method and system for EtherCAT bus
  • Physical layer diagnosis method and system for EtherCAT bus
  • Physical layer diagnosis method and system for EtherCAT bus

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Embodiment Construction

[0034] The core of the present application is to provide a physical layer diagnosis method of the EtherCAT bus, which can simply and efficiently realize the diagnosis of the physical layer of the EtherCAT bus in 100Base-TX mode, reduce costs and simplify operations. Another core of the present application is to provide a physical layer diagnosis system of the EtherCAT bus, which also has the above-mentioned technical effects.

[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without ma...

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Abstract

The invention discloses a physical layer diagnosis method of an EtherCAT bus. The physical layer diagnosis method comprises the following steps of: reading the number of interference times of a data frame of a physical layer from MAC, wherein the number of interference times of the data frame is obtained by the MAC according to a data error indication signal sent by a PHY; acquiring the number of interference times of the data frame of the physical layer within a preset time according to the read number of interference times of the data frame; and determining a communication state of the physical layer according to the number of interference times of the data frame of the physical layer within a preset time. According to the physical layer diagnosis method, the diagnosis of the physical layer of the EtherCAT bus in the 100Base-TX mode can be simply and efficiently realized, the cost is reduced, and the operation is simplified. The invention further discloses a physical layer diagnosis system of the EtherCAT bus, and the physical layer diagnosis system also has the above technical effects.

Description

technical field [0001] The present application relates to the technical field of field bus, in particular to a method for diagnosing the physical layer of the EtherCAT bus; it also relates to a system for diagnosing the physical layer of the EtherCAT bus. Background technique [0002] The EtherCAT bus is an Ethernet-based open-architecture fieldbus system that is widely used in industrial equipment. The EtherCAT bus adopts the 4B / 5B encoding method, which can transmit data with a 125MHz serial data stream, supports full duplex, and uses the MLT-3 (multi-level transmission-3) waveform method to reduce the signal frequency to 125 / 3= 41.6MHz. Currently, the EtherCAT bus has three transmission modes: 100Base-TX mode, 100Base-FX mode, and a mode conforming to the ANSITIA / EIA-644-A standard. Among them, 100Base-TX is the most widely used physical layer specification in 100Base-T. In a complex industrial electrical environment, the EtherCAT bus requires a good physical layer in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40H04L12/26
CPCH04L12/40006H04L43/50
Inventor 索利洋
Owner PEITIAN ROBOTICS CO LTD