Patent · US Expired

Programmable controller

US4961131A · kind A · utility

5Cited by
9References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 20, 1988
Grant dateOct 2, 1990
Priority date
Expiry dateApr 20, 2008

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05B19/058
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A programmable controller includes a master CPU for processing data in accordance with a predetermined program including a prescribed sequence of operating steps, a plurality of operating devices responsive to the master CPU, each having at least two operating states, a monitor device for displaying the execution state of a predetermined number of steps in response to batch processing by the master CPU, and a slave CPU. The slave CPU includes a command execution circuit for generating command output information in response to the execution of each operating step, a register for storing the command output information and the operating state of selected operating devices, and a counter for counting the predetermined number of executed operating steps in the sequence of the program.

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