Programmable controller with a dual intermodule message system

Details Programmable controller with a dual intermodule message system Programmable controller with a dual intermodule message system

1987-08-26

1989-10-24

Heckler, Thomas M.

Boots, shoes, and leggings

3649269, 364949, 3649672, G06F 1546

Patent

active

048766640

ABSTRACT:
A programmable controller suitable for operating a machine to carry out a plurality of programmed functions includes a plurality of program processors each being operable to execute simultaneously a different control program that directs the programmable controller to operate the machine to perform specific functions. Each of the processors includes a memory having areas for receiving different priority level messages. Each area has an addressable location corresponding to each module in the controller that can send messages. A message may be an executable command or a pointer to an address block containing the message or message access parameters.

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patent: 4648064 (1987-03-01), Morley

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