Method for transmitting data via canopen bus

A technology for transmitting data and data, applied in transmission systems, electrical digital data processing, electrical components, etc., can solve problems such as time-consuming, expensive, and inability to analyze CANopen messages

Active Publication Date: 2013-02-27
SCHNEIDER ELECTRIC AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Expensive and time-consuming configuration of each individual field device via a one-to-one connection
[0033] A problem arises when using such field devices with a MODBUS interface in the CAN-open fieldbus: CANopen messages cannot be evaluated via the MODBUS interface

Method used

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  • Method for transmitting data via canopen bus
  • Method for transmitting data via canopen bus
  • Method for transmitting data via canopen bus

Examples

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Embodiment Construction

[0063] figure 1 An automation system is shown purely schematically, which in the exemplary embodiment shown comprises logic controllers 12 , 14 which are coupled to one another via an Ethernet network 16 . Furthermore, an HMI controller 18 is provided as an operator terminal, which is likewise connected to the Ethernet network 16 .

[0064] The logic controllers 12, 14 are connected via CANopen bus 20, field bus devices 24, 26, 28, 30 or 32, 34, 36, 40 respectively. Fieldbus devices 24 , 26 or 32 , 34 can be, for example, drive controllers or motion controllers for actuating drives. Fieldbus devices 28, 30 or 36, 40 may be realized as input / output devices.

[0065] In order to configure the controllers 12 , 14 , 18 and / or the fieldbus devices 24 - 40 , the controller 12 is connected via a single connection 52 to a configuration PC 50 . In the exemplary embodiment described, connection 52 is designed as a USB connection.

[0066] A software tool 54 for configuring and / or pa...

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PUM

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Abstract

The invention relates to a method for transmitting data between a first automation appliance, such as a user PC or a central controller, and at least one second automation appliance, such as a field device, via a CANopen bus using a service data object as an SDO service, wherein an SDO client implemented in the first automation appliance is used to send a download or upload request to an SDO server implemented in the at least one second automation appliance, wherein the data are encapsulated in a CANopen frame by an application implemented in the first automation appliance or the at least one second automation appliance wherein the CANopen frame with the encapsulated data is transmitted or sent by means of an SDO service into or out of a data tunnel object defined in an object directory of the SDO server, and wherein the encapsulated data are decapsulated by the application implemented in the first or the at least one second automation appliance. In order to simplify the configuration and / or parameterization of automation appliances with a MODBUS server using a CANopen bus, provision is made for the method to be used to configure and / or parameterize the second automation appliance having at least one MODBUS server using the CANopen bus, for the data to be produced as configuration and / or parameterization data in the form of a MODBUS frame and to be encapsulated in the CANopen frame, and for the CANopen frame to be loaded into the data tunnel object of the SDO server of the at least one second automation appliance by means of an SDO download and decapsulated.

Description

technical field [0001] The invention relates to a method for the transmission between a first automation device, such as an operating PC or a central control device, and at least one second automation device, such as a field device, via a CAN-open bus using service data objects as SDO services Method for data, wherein the SDO client implemented in the first automation device performs a download or upload query to the SDO server implemented in at least one second automation device, wherein the data is passed in the first automation device or at least one second automation The application implemented in the device is encapsulated in a CANopen frame, wherein the CANopen frame with the encapsulated data is transferred via the SDO service to or from a data tunnel object defined in the object directory of the SDO server The data tunnel object is sent and the data encapsulated therein is decapsulated by an application implemented in the first or at least one second automation device....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/42H04L29/06
CPCH04L67/12H04L29/08558H04L29/08981H04L67/10H04L67/34
Inventor H.沙夫纳P.哈姆皮基安
Owner SCHNEIDER ELECTRIC AUTOMATION
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