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Patent Searching and Data


Title:
RELAY UNIT FOR PHOTOELECTRIC SENSOR
Document Type and Number:
WIPO Patent Application WO/2019/187557
Kind Code:
A1
Abstract:
This relay unit (20) comprises a first terminal (21) for connecting to a multi-optical-axis photoelectric sensor (13), a second terminal (22) for connecting to a controller (30), and a third terminal (23) for connecting to a communication master (40). If a master-side communication control unit (82) receives a backup command from the communication master (40), a sensor-side communication control unit (81) acquires setting information from a synchronization line (25) and stores the same in a memory (85). If the master-side communication control unit (82) receives a restore command from the communication master (40), the sensor-side communication control unit (81) outputs the setting information in the memory (85) to the synchronization line (25). If the sensor-side communication control unit (81) detects a difference between the setting information transmitted over the synchronization line (25) and the setting information in the memory (85), the master-side communication control unit (82) outputs a notification signal to the communication master (40).

Inventors:
WATANABE Yoshiyuki
ITO Koji
Application Number:
JP2019/002139
Publication Date:
October 03, 2019
Filing Date:
January 23, 2019
Export Citation:
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Assignee:
PANASONIC INDUSTRIAL DEVICES SUNX CO., LTD. (2431-1, Ushiyama-cho Kasugai-sh, Aichi 01, 〒4860901, JP)
International Classes:
G01V8/20
Foreign References:
JP5184022B22013-04-17
JP3965926B22007-08-29
JP2958371B21999-10-06
US20050052639A12005-03-10
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (Toranomon East Bldg. 10F, 7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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