Process communication link
US4271505A · kind A · utility
54Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1979 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Jul 2, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4213
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A distributed, electronic process control system is disclosed having a plurality of remotely located stations interacting to control a complex industrial process. The stations communicate via a process communication link which supports secure, multi-master communication. The link provides a transparent medium of exchange for the secure transfer of process status and control information among the stations, such that each station may initiate and control system communication for a predetermined time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.