Patent · US Expired

Programmable sequence controller

US3996565A · kind A · utility

14Cited by
5References
7Claims
0Family size

Assignees

Inventors

Key dates

Filing dateJul 3, 1974
Grant dateDec 7, 1976
Priority date
Expiry dateJul 3, 1994

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05B2219/15105
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A sequence controller comprising a logic operation circuit for examining an external input with an examine command in accordance with a program. The logic operation circuit comprises block means for discontinuing a next examination of a logical function of a group of logical functions in response to a preceeding examination result of a logical function to thereby execute a logic operation non-sequentially.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.