Unlock instant, AI-driven research and patent intelligence for your innovation.

Data transmission/reception system

一种数据收发、数据的技术，应用在数字传输系统、传输系统、电数字数据处理等方向，能够解决不能发送放大器放大器数据DATA2等问题

Inactive Publication Date: 2008-06-04
FANUC LTD
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the amplifier data DATA2 and DSYA3 of the amplifiers A2 and A3 on the downstream side cannot be transmitted.

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
  • Data transmission/reception system
  • Data transmission/reception system
  • Data transmission/reception system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] As an embodiment of a data transmission and reception system in which a plurality of units are connected by a daisy-chained serial bus and data signals are transmitted and received between these units, a numerical control device 1 and a plurality of (3) shown in FIG. 1 will be described. a) A system composed of servo amplifiers A1 to A3. In the system shown in FIG. 1 , a numerical controller 1 and servo amplifiers A1 to A3 are connected in a daisy-chain manner via a serial bus cable 2 to transmit and receive data.

[0046] In addition to the line length of the cable 2, whether the downstream side amplifier can transmit the amplifier data, the upstream side unit (amplifier or numerical controller) can receive the data, and transmit the received data can be performed without any problems. In FIGS. 1 and 2, the time required for circuit processing until the data received by the first connector C1 can be transmitted by the second connector C2.

[0047] The reception-to-tra...

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 present invention relates to a data transmission and reception system. In the present invention, amplifiers (units) connected by a daisy-chain serial bus transmit their own data DATAn after transmitting a transmission start signal SC. When the data from the amplifier on the downstream side is not received until the transmission of the own data DATAn is completed, the segment of the data from each amplifier is changed by adding the idle time data TIDD.

Description

technical field [0001] The invention relates to data sending and receiving between units connected by a daisy-chain serial bus. Background technique [0002] In order to transmit and receive data between a plurality of units, a data transmission and reception system is known in which these units are connected with a daisy-chained serial bus. [0003] For example, JP-A-10-13394 (hereinafter referred to as "Patent Document 1") discloses that, for example, in a machine tool controlled by a numerical controller, a serial bus is used to connect the numerical controller and drive each feed axis. A system that transmits the position or speed data of the feed axis detected by each servo amplifier to the numerical control device through a daisy chain between the servo amplifiers of the servo motor. [0004] FIG. 1 shows an example of a data transmission and reception system between units (servo amplifiers) connected by a daisy-chain serial bus disclosed in Patent Document 1. As show...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/414G05B19/418H04L7/00H04L12/28H04L13/08H04L47/431
CPCG06F13/4256
Inventor 青山一成小槙邦孝相泽安晴
Owner FANUC LTD