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Slave, communication expansion card and networking system

A communication expansion and communication card technology, which is applied in the field of networking control, can solve the problems of single type of communication bus, poor flexibility, and inability to meet the networking requirements of different types of communication buses.

Pending Publication Date: 2018-04-27
SHENZHEN INVT ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, indirect networking still has the same problems as direct networking, that is, the type of communication bus used in networking is single and has poor flexibility, which cannot meet the networking requirements of different types of communication buses.

Method used

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  • Slave, communication expansion card and networking system
  • Slave, communication expansion card and networking system
  • Slave, communication expansion card and networking system

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0024] Embodiments of the present invention provide a networki...

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Abstract

The invention discloses a slave, a communication expansion card and a networking system. The networking system comprises the expansion communication card, a master and the slave. The slave comprises afirst preset interface. The expansion communication card comprises a communication bus interface and a second preset interface. The master is connected with the communication bus interface of the expansion communication card through a communication bus. The slave is connected with the expansion communication card through the first preset interface connected with the second preset interface. The expansion communication card carries out protocol format conversion according to the types of the communication bus, the first preset interface and the second preset interface to realize communicationbetween the master and the slave. According to the networking system, the first preset interface is arranged on the slave, and the interfaces of the slave are unified; the expansion communication cardis used to meet the networking requirements of different types of communication buses; and the flexibility of the networking system is improved.

Description

technical field [0001] The invention relates to the technical field of networking control, in particular to a slave machine, a communication expansion card and a networking system. Background technique [0002] At present, most of the existing equipment adopts direct networking or indirect networking methods for networking, such as the networking scheme of the multi-drive inverter control system. The control system includes multiple inverters, one of which is the host, and the other The inverter acts as a slave. The control system of the frequency converter can adopt direct networking or indirect networking. Direct networking means that the master directly connects with the slaves in the system through the communication bus to realize the monitoring of the slaves by the master. In this scheme, the slaves The communication interface is fixed, and the type of communication bus used in the networking is single, which cannot meet the networking requirements of different communi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40H04L29/06
CPCH04L12/40006H04L12/40032H04L69/08
Inventor 钟声徐铁柱张献伟
Owner SHENZHEN INVT ELECTRIC
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