Cigarette packaging machine control and monitoring system

Details Cigarette packaging machine control and monitoring system Cigarette packaging machine control and monitoring system

1980-08-01

1984-04-10

Coan, James F.

Package making

With means responsive to a sensed condition

53 77, 53508, 34082505, 364138, B65B 1928, H04Q 500

Patent

active

044413025

ABSTRACT:
A control and monitoring system for cigarette packaging machines comprises a control station (1) connected in cascade to each of a plurality of remote stations (2 and 3) in turn, in a ring. The control station 1 supplies an interrogation signal to a D-type latch (20, 30) of the first remote station, which changes state on the next clock pulse edge and applies an interrogation signal to the D-type latch of the second remote station so that the stations are sequentially interrogated in essentially non-overlapping time periods. An interrogated station communicates with the control center (1) via an information line (16) either to receive machine control signals to be passed on to a machine or machine part with which the remote station is associated, or to send machine fault signals indicating a fault in the associated machine or machine part.

REFERENCES:
patent: 3513302 (1970-05-01), Jacques et al.
patent: 3911643 (1975-10-01), Davies
patent: 4124887 (1978-11-01), Johnson et al.

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