Fieldbus function block shell with user selectable data ownership

A method for accessing data on a fieldbus device in a fieldbus network which comprises user selectable models of data ownership. The fieldbus device includes a user application executing on the fieldbus device and a function block shell executing on the fieldbus device. The method comprises receivin...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	RAMACHANDRAN, RAM, KLOPFER, MIKE, GOFF, DONALD B, SU, SHERWIN
Format:	Patent
Sprache:	eng
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A method for accessing data on a fieldbus device in a fieldbus network which comprises user selectable models of data ownership. The fieldbus device includes a user application executing on the fieldbus device and a function block shell executing on the fieldbus device. The method comprises receiving a request to access data on a fieldbus device. In response to the request, the function block shell determines the ownership attribute of the data, wherein possible ownership attributes include user owned or shell owned. The shell accesses the data in response to determining that the ownership attribute of the data is shell owned. The user application accesses the data in response to determining that the ownership attribute of the data is user owned. The method further includes shell notify and user pointer ownership models which provide additional flexibility.