DISCARDING A PARTIALLY RECEIVED MESSAGE FROM A DATA QUEUE

Title:

DISCARDING A PARTIALLY RECEIVED MESSAGE FROM A DATA QUEUE

Document Type and Number:

WIPO Patent Application WO2006028670

Kind Code:

A3

Abstract:

Devices in a process control system communicate by data messages over a communication medium segment. Each device includes a communication controller that includes a received data memory and a plurality of received message objects. When a message is received, a received message object is activated, and the initial position of a write pointer in the received data memory is stored in the received message object. During message reception, if a hardware device determines that the message is to be ignored, the received message object is deactivated, thereby preventing further writing of the message to the received data memory. The write pointer is then preferably returned to its initial position as stored in the received message object.

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Inventors:

FRANCHUK BRIAN A (US)
BENSON ROGER R (US)

Application Number:

PCT/US2005/029198

Publication Date:

November 30, 2006

Filing Date:

August 15, 2005

Export Citation:

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Assignee:

FISHER ROSEMOUNT SYSTEMS INC (US)
FRANCHUK BRIAN A (US)
BENSON ROGER R (US)

International Classes:

H04L49/901; G06F3/00; H04L47/32

Foreign References:

US6799229B1

2004-09-28

Other References: