Title:
NETWORK SYSTEM COMMUNICATION METHOD USING I/O DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/148421
Kind Code:
A1
Abstract:
Provided is a network system using I/O devices. In the system, a plurality of I/O
devices are connected in a daisy chain shape. A master node and an end slave node
are active nodes while the other intermediate slave nodes are passive nodes. A
communication frame is generated only in the active nodes.
Inventors:
AMAGAI, Akihiro (LTD.4-21 Minaminaruse, Machida-sh, Tokyo 45, 1940045, JP)
Application Number:
JP2006/324304
Publication Date:
December 27, 2007
Filing Date:
November 29, 2006
Export Citation:
Assignee:
SANRITZ AUTOMATION CO., LTD. (4-22, Sakuragaokachou Shibuya-k, Tokyo 31, 1500031, JP)
サンリツオートメイション株式会社 (〒31 東京都渋谷区桜丘町４－２２ Tokyo, 1500031, JP)
サンリツオートメイション株式会社 (〒31 東京都渋谷区桜丘町４－２２ Tokyo, 1500031, JP)
International Classes:
G06F13/00; H04L7/00; H04L12/28; G06F13/00; H04L7/00; H04L12/28
Attorney, Agent or Firm:
SAITOH, Haruo (11-6, Kyobashi 2-chome Chuo-k, Tokyo 31, 1040031, JP)