METHODS AND APPARATUS FOR MULTIMODE RFST COMMUNICATIONS IN PROCESS CONTROL SYSTEMS

An example apparatus includes a first sensor tag to retrieve operational data, via a modem and a data bus, from a process control field device, wherein the first sensor tag includes a memory to store the operational data; a first antenna arranged to communicate with the first sensor tag when the fir...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Latwesen, Annette Lynn, Junk, Kenneth W
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS HANDLING RECORD CARRIERS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS REGULATING WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	An example apparatus includes a first sensor tag to retrieve operational data, via a modem and a data bus, from a process control field device, wherein the first sensor tag includes a memory to store the operational data; a first antenna arranged to communicate with the first sensor tag when the first sensor tag receives operational data, the first antenna to communicate with the first sensor tag via a first frequency band; and a first identification device to retrieve the operational data from the first sensor tag, via the first antenna and the first frequency band, while the process control field device is unpowered.