Communication control method

Details Communication control method Communication control method

1987-02-04

1989-02-21

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

370 86, H04Q 900, H03J 300

Patent

active

048069272

ABSTRACT:
In a control system, having at least one controller for communicating with at least one station within the control system whereby the controllers require control of a token for initiating the communications, and further wherein the stations cannot obtain control of the token, a method of communicating between the controllers and the station wherein an instruction with a response request is sent from a controller to a station. Index data is sent back from the station and indicates a store position of status information that corresponds to the above instruction. Desired status information is retrieved by the controller utilizing the above index data, so that an execution result of the instruction sent by the controller can be verified.

REFERENCES:
patent: 4539679 (1985-09-01), Bux et al.
patent: 4663758 (1987-05-01), Lambarelli et al.
patent: 4700185 (1987-10-01), Balph et al.
patent: 4719621 (1988-01-01), May

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