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powerlink slave station module expansion system and interaction method between slave station and bus master node

An interactive method, bus master technology, applied in Internet-related fields, can solve the problem that the number of POWERLINK subnet slave stations is difficult to meet the use requirements, and achieve the effect of fast communication speed and less logic resource occupation

Active Publication Date: 2021-09-28
西安零幺九章电子科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] Therefore, it has great practical application value to provide a method that uses LVDS bus technology to solve the problem that the number of POWERLINK subnet slave stations is difficult to meet the use requirements.

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  • powerlink slave station module expansion system and interaction method between slave station and bus master node
  • powerlink slave station module expansion system and interaction method between slave station and bus master node

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Embodiment Construction

[0054] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined in the present application.

[0055] Such as figure 1Shown is the POWERLINK slave module expansion system provided by the embodiment of the present invention. The main components of this system are as follows:

[0056] The POWERLINK slave station (referred to as the slave station) realizes the POWERLINK function and operates the bus master node, and realizes the operation of the module by writing commands or reading the status of a specific r...

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Abstract

The invention provides a POWERLINK slave station module expansion system and an interaction method between the slave station and the bus master node, wherein the system includes a POWERLINK slave station: used to realize the POWERLINK function, and operate the bus master node, and write commands through the bus master node Or read the state of a specific register to operate the module; LVDS bus master node: used to detect, receive and execute commands from the slave station, and provide bus status information to the slave station at the same time; multiple modules: used to receive and execute commands from the bus The command of the master node realizes the writing control or information reading of the peripheral device. The technology of the present invention can add as many as 32 modules to a single slave station, so as to meet the field requirements in practical applications.

Description

technical field [0001] The invention mainly relates to the technical field related to the Internet, in particular to a POWERLINK slave station module expansion system and an interaction method between the slave station and the bus master node. Background technique [0002] POWERLINK is an open source industrial real-time Ethernet technology, it does not need special hardware, only the basic Ethernet platform can be realized. And it has the characteristics of flexible wiring, low transmission delay, large data throughput, and high reliability. It has been widely used in instrument control, field control unit and other occasions. [0003] The hardware of POWERLINK is no different from that of standard Ethernet. A subnet has at least one master station and up to 240 slave stations, which usually cannot meet the needs of the scene in practical applications. [0004] LVDS (Low-Voltage Differential Signaling) low-voltage differential signaling is a differential signal technology...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40
CPCH04L12/40006H04L12/40013H04L12/40019
Inventor 骞拓
Owner 西安零幺九章电子科技有限公司
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