Modular operational elevator control system

Details Modular operational elevator control system Modular operational elevator control system

1983-10-27

1985-02-05

Shoop, William M.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

B66B 300

Patent

active

044973918

ABSTRACT:
An elevator control system wherein signals between fixtures and the controller are provided in time-division, half-duplex multiplexing protocol is disclosed. Remote stations (64, 150) serialize multiple fixture inputs (66-69) and outputs (106-109) and are characterized for response during particular time slots by binary address means (84). A master station (90) serializes multiple controller inputs (102-105) and outputs (93-96) and is responsive for all time slots in either a transmit or receive mode. A portion (82) of the controller (78) provides clocking (76) and dynamic addressing (98) for the system.

REFERENCES:
patent: 3782504 (1974-01-01), Billmaier et al.
patent: 3841443 (1974-10-01), Booker, Jr.
patent: 3851735 (1974-12-01), Winkler et al.
patent: 3903499 (1975-09-01), Oliver

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