Field bus communication adapter with configurable characteristic

A technology of communication adapter and field bus, which is applied in the direction of bus network, data exchange through path configuration, electrical components, etc. It can solve the problems of poor flexibility and practicality, obstacles, etc., and achieve the effect of saving the number of wires and reducing investment

Inactive Publication Date: 2006-06-21
SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For DeviceNet communication adapters, at present, (DeviceNet) adapters at home and abroad can only send certain fixed data packets of the device to the master station, which is very poor in flexibility and practicability
Traditional adapters generally can only be connected to a certain fixed device. For the same type of device, the communication protocols on the serial port side are different due to different manufacturers. Moreover, for devices with the same communication protocol, each manufacturer provides The parameters and properties are also different, so it can only be a communication adapter with a fixed device. When the device changes slightly or is not the same type of device, you can only modify the software of the adapter and reprogram the chip. It is a big obstacle in terms of the promotion of technology

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Field bus communication adapter with configurable characteristic
  • Field bus communication adapter with configurable characteristic
  • Field bus communication adapter with configurable characteristic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with drawings and embodiments.

[0022] refer to figure 1 , which is a hardware system structure diagram of the configurable communication adapter of the present invention.

[0023] As shown in the figure, the hardware structure includes DeviceNet interface, CAN bus transceiver, MCU, optocoupler isolation circuit, RS485 bus transceiver, RS232 interface, power conversion and protection circuit, EEPROM, DIP switch, DC-DC power isolation circuit, Serial port indicators and DeviceNet network and module indicators.

[0024] The above-mentioned hardware structure is based on the original communication adapter hardware platform, and the major changes include: (1) The main control chip is replaced, and the original AT89C51CC01 main chip of ATMEL is replaced by Fujitsu's 16-bit MCU MB90F352S; (2) The design of the power isolation circuit is simplified, and the DC-DC power isolation circuit originally designed...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a field bus communication adaptor with configurable character, which comprises: a DeviceNet interface, a CAN bus transceiver, a MCU, an optical coupling insulation circuit, a RS48 bus transceiver, a RS232 interface chip, a power switch and protection circuit, an EEPROM, a dial switch, a DC-DC power insulation circuit, a serial indicator light, an adapter module indicator light, and a network indicator light. Wherein, it stores in main CPU auto baud rate upload / download process, main program process, configuration program process, running program process, algorithm program process to search CLASS ID and ATTRIBUTE ID, search program process for DeviceNet-Modbus mapping relation, and serial ISR process. This invention has super performance.

Description

technical field [0001] The present invention relates to a field bus device communication adapter with configurable characteristics, more precisely a communication adapter for protocol conversion between (Modbus) protocol and (DeviceNet) protocol. Background technique [0002] With the development of science and technology, a (DeviceNet) bus technology has been developed, which is changing the appearance of some fields. [0003] The DeviceNet bus technology adopts the data bus, and the master station only needs to lead out two or a few lines to connect various field devices to provide configuration, monitoring and diagnosis functions for the devices. [0004] The development of bus technology has brought great impact to low-voltage electrical products, but due to the diversity of (DeviceNet) network data and the flexibility of exchange, (DeviceNet) network does not have a complete and integrated protocol chip, and the development cycle of DeviceNet interface is relatively lon...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L29/06H04L12/40
Inventor 刘健王伟
Owner SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap