Boots – shoes – and leggings
Patent
1978-06-01
1979-08-21
Chapnick, Melvin B.
Boots, shoes, and leggings
364104, G05B 1101, G05B 1902, G06F 906
Patent
active
041655346
ABSTRACT:
An eight-bit microprocessor sequentially reads controller type instructions from a memory and applies the operation codes of selected ones of the instructions to a hardwired Boolean processor. The microprocessor also couples status words between an I/O image table stored in the memory and the I/O interface racks which connect the programmable controller to the machine being controlled. In general, those controller type instructions which are word oriented are executed by the microprocessor and those which are single-bit oriented are executed by the Boolean processor. The Boolean processor is operable in combination with the microprocessor to examine selected status bits in the I/O image table and to set selected status bits therein to a logic state which is determined in part by the state of the examined status bits.
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Dummermuth Ernst
Grants Valdis
Grudowski Raymond A.
Schmidt Otomar
Allen-Bradley Company
Chapnick Melvin B.
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