Programmable control or regulating device

Details Programmable control or regulating device Programmable control or regulating device

1989-02-01

1990-12-11

Pitts, Harold I.

Registers

Systems controlled by data bearing records

235487, 235454, 364146, G06F 1520

Patent

active

049773100

ABSTRACT:
A programmable regulating device, preferably for the regulation of a heating, ventilation and/or air conditioning installation, is disclosed. The inventive device illustratively comprises a microprocessor, a program and data memory and a service panel which includes a label, selection keys, edit key and display. The contents of the label are variable. A plurality of service cards are assigned to the service panel. Each service card is provided with a number of display lines equal to the number of lines in the label and supports a machine-readable encoding field comprising one or more markings. The service panel is provided with a reading unit by means of which all existing markings can be read. The encoding field of each service card is differentiated by the number and/or varying arrangement of markings, so that the microprocessor is informed through the reading unit and the encoding field as to which service card has been assigned to the reading unit. Depending upon the information recognized, the microprocessor services a program part attributed to that information and displays on each display line the information pertaining to the corresponding line in the label.

REFERENCES:
patent: 4460844 (1984-07-01), Kadogaki
patent: 4682014 (1987-07-01), Iwama
"Monogyr Dialog", Mar. 1987.

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