Automatic remote monitoring and diagnostics system and communication method for communicating between a programmable logic controller and a central unit
US7720639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2005 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Oct 27, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/33303
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A Monitoring and Diagnostics System is provided, which includes a monitoring unit and a monitored unit remotely located from the monitoring unit. The System also includes communication means between the monitoring unit and the monitored unit. The monitored unit includes data acquisition means for providing fault data of the monitored unit and the communication means are adapted to communicate the fault data from the monitored unit to the monitoring unit. The monitoring unit includes a rules engine having a set of expert rules for analyzing the information contained in the fault data and being adapted to deduce diagnostics information from the rules and from the information. In addition, a communication method for communicating between a first Programmable Logic Controller and a second Programmable Logic Controller or a central unit is provided, in which a description file is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.