Apparatus and methods to communicatively couple field devices to controllers in a process control system
US9083548B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2008 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Jun 19, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40254
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Example apparatus and methods to communicatively couple field devices to controllers in a process control system are disclosed. An example method of changing a communication protocol of a first field device in a process control system includes decoupling from the first field device a first removable communication module configured to communicate using a first communication protocol. The example method also includes coupling to the first field device a second removable communication module configured to communicate using a second communication protocol. After coupling the second removable communication module, the first field device is configured to communicate using the second communication protocol. In addition, the first field device is coupled to a first communication channel on an input/output card when communicating using the first communication protocol and the first field device is coupled to the first communication channel on the input/output card when communicating using the second communication protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.