System and method for universal extensibility that supports a plurality of programmable logic controllers
US7565660B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2003 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Jan 30, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/13148
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and system is provided for creating applications for one or more types of programmable logic controllers (PLCs). A open development kit (ODK) is provided that permits dynamic link libraries to be created and interfaced to a user application software and also to the interface layers of the various types of PLCs. The types of PLCs may include soft PLCs, slot PLCs, and hard PLCs and interface via slots of a personal computer platform. The ODK provides generic interfacing to the various types of PLCs and establishes the necessary operating environment structure to implement processing in either a non-real time and a real time mode. A single application package may then control and manage the various types of PLCs. Communication paths are provided from the PLCs to the ODK subsystem to the user application so that the application software is essentially indifferent to type of PLC involved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.