发明授权
- 专利标题： Communication system with master and slave exchanging control data in predetermined communication period
- 专利标题（中）： 通信系统具有主，从交换控制数据的预定通信时段
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申请号： US12474028申请日： 2009-05-28
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公开(公告)号： US07769935B2公开(公告)日： 2010-08-03
- 发明人: Mamoru Fukuda , Tatsuhiko Satou
- 申请人： Mamoru Fukuda , Tatsuhiko Satou
- 申请人地址： JP Fukuoka
- 专利权人： Kabushiki Kaisha Yaskawa Denki
- 当前专利权人： Kabushiki Kaisha Yaskawa Denki
- 当前专利权人地址： JP Fukuoka
- 代理机构： Ditthavong Mori & Steiner, P.C.
- 优先权： JP2006-352122 20061227
- 主分类号： G06F13/00
- IPC分类号： G06F13/00
摘要：
A master includes a unit configured to register, for each slave, an expected communication time needed to exchange control data; a unit configured to register a slave in which a communication error is detected during exchange of the control data in a communication period; and a unit configured to re-execute exchange of the control data with the registered slave in the same communication period as that in which the communication error is detected. The unit configured to re-execute exchange of control data calculates a remaining resending time that can be used to re-execute exchange of the control data and, when the remaining resending time is longer than the expected communication time of the registered slave, resends the control data.
公开/授权文献
- US20090248933A1 MASTER/SLAVE COMMUNICATION SYSTEM 公开/授权日：2009-10-01
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