Handheld field maintenance bus monitor
First Claim
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1. A handheld field maintenance bus monitor comprising:
- a plurality of terminals coupleable to a process communication loop;
at least one media access unit coupled to the plurality of terminals and configured to receive digital process communication data from the process communication loop in accordance with an industry standard protocol;
a controller coupled to the at least one media access unit and configured to receive the digital process communication data from the at least one media access unit;
memory coupled to the controller to store the digital process communication data received from the at least one media access unit;
a user interface configured to allow a user to define a condition configured to trigger a capture period;
wherein, upon the occurrence of the condition, the handheld field maintenance bus monitor stores all digital process communication data occurring on the process communication loop in the memory during the capture period and groups the digital process communication data according to time.
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Abstract
A handheld field maintenance bus monitor is provided. The handheld field maintenance bus monitor is coupleable to at least one process communication loop, and is configured to capture and store a selected quantity of digital communication observed on the process communication loop during a capture period. Optionally, the handheld field maintenance bus monitor may be configured to couple to and interact with process communication loops of at least two different process communication protocols, such as HART® and FOUNDATION™. A method of analyzing captured and stored communication data is also provided.
55 Citations
16 Claims
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1. A handheld field maintenance bus monitor comprising:
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a plurality of terminals coupleable to a process communication loop; at least one media access unit coupled to the plurality of terminals and configured to receive digital process communication data from the process communication loop in accordance with an industry standard protocol; a controller coupled to the at least one media access unit and configured to receive the digital process communication data from the at least one media access unit; memory coupled to the controller to store the digital process communication data received from the at least one media access unit; a user interface configured to allow a user to define a condition configured to trigger a capture period; wherein, upon the occurrence of the condition, the handheld field maintenance bus monitor stores all digital process communication data occurring on the process communication loop in the memory during the capture period and groups the digital process communication data according to time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of capturing digital information on a process communication loop, the method comprising:
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setting a capture start condition and a capture end condition; coupling a handheld field maintenance bus monitor to the process communication loop; detecting satisfaction of the capture start condition; capturing and storing all digital communication information observed on the process communication loop in the handheld field maintenance bus monitor until the capture end condition is detected; arranging the digital communication information according to time; and providing the stored digital communication information. - View Dependent Claims (13, 14, 15, 16)
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Specification