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15 July 2008, Volume 29 Issue 7

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管理与信息化

Design of communication protocol in sample textile CAD&CAM system based on RS 485

MA Chongqi;PAN Qingyun

JOURNAL OF TEXTILE RESEARCH. 2008, 29(7):  108-111. 

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The traditional sample textile equipments have such problems as mechanical pattern,low automatic level and lack of connection among these equipments,for this reason,a sample textile CAD&CAM system was developed.This paper puts emphasis on network structure,function and communication protocol of sample textile CAD&CAM system.A single-master/multiple slave communication model based on RS 485 was studied and one to one master-slave communication was realized.In addition,the requested data packet,data packet and response package in communication protocol were defined and analyzed,and anti-interference design was discussed.Based on this communication protocol,the host of sample textile CAD&CAM system can transfer process parameters to a number of slave machines and monitor working state of slave machines.