Polling communication system with priority control
Номер патента: CA2004934C
Опубликовано: 20-09-1994
Автор(ы): Kazuo Iguchi, Koji Tezuka, Shigeo Amemiya, Tetsuo Soejima, Tomohiro Shinomiya
Принадлежит: Fujitsu Ltd
Опубликовано: 20-09-1994
Автор(ы): Kazuo Iguchi, Koji Tezuka, Shigeo Amemiya, Tetsuo Soejima, Tomohiro Shinomiya
Принадлежит: Fujitsu Ltd
Реферат: POLLING COMMUNICATION SYSTEM WITH PRIORITY CONTROL ABSTRACT OF THE DISCLOSURE A communication system containing: a master station, a plurality of slave stations each for communicating with the above master station, a two-way transmission line connecting the above master station and the above plurality of slave stations. Each of the above slave stations sends a request for a further communication with the above master station, to the master station when its own slave station is allowed to communicate with the master station and its own slave station has the above request. The above master station detects the request for a further communication with the above master station in a signal sent from a slave station, and memorizes a slave station from which a request for a further communication with the master station is detected, until an allowance is sent to the slave station from the master station corresponding to the memorizing of the slave station. The master station has a cyclic address pointer which points out an address of a next one of the above slave stations in a cyclic order when no slave station is memorized in the master station. m e master station outputs an allowance to communicate with the master station: to a slave station which is memorized in the master station; or to a slave station the address of which is pointed out by the above cyclic address pointer when no request is memorized in the master station.
Polling scheme with priority in an industrial network system
Номер патента: US20240232107A9. Автор: Bertrand Fruchard,Caijin WANG. Владелец: Schneider Electric Industries SAS. Дата публикации: 2024-07-11.