Patent · US Expired

Multiple program storage within a programmable logic controller system

US6964045B1 · kind B1 · utility

2Cited by
11References
27Claims
0Family size

Inventors

Key dates

Filing dateDec 16, 1999
Grant dateNov 8, 2005
Priority date—
Expiry dateDec 16, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05B2219/2227
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

Methods and apparatus for a memory device host that stores and retrieves program and data information for multiple CPU-based modules in a programmable logic controller system are described. In one embodiment, the memory host module is configured to store multiple programs and corresponding data within the memory of the memory host module and further configured to retrieve programs and data from the memory of the memory host module for storage in other CPU-based modules.

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