Electronic controller having a detachable front panel

Details Electronic controller having a detachable front panel Electronic controller having a detachable front panel

1982-05-28

1985-01-29

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 1546

Patent

active

044970382

ABSTRACT:
An electronic controller having a detachably mounted front panel unit on which display devices and control elements are arranged is disclosed. By means of the control elements, the process variables and the control parameters are changed incrementally. Values of the control parameter, process variables, and the selected control parameter are indicated by the display devices. To provide a compact, independent front panel unit which can be removed from the main housing of the controller for protection against unauthorized operation, the front panel unit is provided with a slave microprocessor which is connected via a plug-in connector to a master microprocessor in the main housing. Because the master microprocessor operates independently of the front panel mounted slave microprocessor, the front panel unit can be removed without affecting the operation of the controller.

REFERENCES:
patent: 3942077 (1976-03-01), Powers
patent: 4064394 (1977-12-01), Allen
patent: 4074350 (1978-02-01), Roch et al.
patent: 4228495 (1980-10-01), Bernhard et al.
patent: 4263647 (1981-04-01), Merrell et al.
patent: 4380796 (1983-04-01), Ostby
patent: 4424559 (1984-01-01), Lovincz et al.
Microprocessor Controller for Process Heating Applications--Instruction Manual--vol. 1--Barber Colman Co., Sep. 1979, pp. 1-26.

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