Programmable controller system
US7945340B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2006 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Feb 7, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/14112
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A programmable controller system includes a programmable controller apparatus, a remote input and output apparatus connected to the programmable controller apparatus via a field bus and a monitoring apparatus configured to be located on a communication path between the programmable controller apparatus and the remote input and output apparatus and to monitor a communication data therebetween. The monitoring apparatus includes a rewritable tag for prescribing a condition for issuing a transmission request command with respect to an external equipment deterioration diagnosis and a command issuing part issues a transmission request command required for the external equipment deterioration diagnosis with reference to the tag. A preferable data logging operation is carried out properly without any PLC operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.