Program loader for programmable controller

Details Program loader for programmable controller Program loader for programmable controller

1978-04-05

1980-04-29

Nusbaum, Mark E.

Boots, shoes, and leggings

364101, G06F 900

Patent

active

042009154

ABSTRACT:
A microprocessor based program loader is connected to the memory data bus and memory address bus of a programmable controller. The program loader is responsive to commands entered through a keyboard to load and edit the programmable controller control program. A mode switch associated with the programmable controller provides a number of selectable positions which determine the mode of operation of the programmable controller and the functions that can be performed by the program loader. One of the positions on this mode switch enables the program loader through a control line to assume control of the mode selection. The operator can thus control the mode of operation through the program loader keyboard which may be located remotely from the programmable controller.

REFERENCES:
patent: 3668653 (1972-06-01), Fair et al.
patent: 3737861 (1973-06-01), O'Neill et al.
patent: 3771134 (1973-11-01), Huettner et al.
patent: 3944984 (1976-03-01), Morley et al.
patent: 3970830 (1976-07-01), White et al.
patent: 3982230 (1976-09-01), Burkett et al.
patent: 4003033 (1977-11-01), O'Keefe et al.
patent: 4034354 (1977-07-01), Simmons

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