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 translate between signals on the process communication loop and digital data;
a controller coupled to the at least one media access unit and configured to receive digital information from the at least one media access unit based on the signals on the process communication loop;
memory coupled to the controller to store digital information received during a capture period; and
a user interface configured to allow a user to define the capture period.
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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.
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Citations
19 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 translate between signals on the process communication loop and digital data; a controller coupled to the at least one media access unit and configured to receive digital information from the at least one media access unit based on the signals on the process communication loop; memory coupled to the controller to store digital information received during a capture period; and a user interface configured to allow a user to define the capture period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of capturing digital information on a process communication loop, the method comprising:
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coupling a handheld field maintenance bus monitor to the loop; satisfying a capture start condition; capturing storing digital information observed on the loop in the handheld field maintenance bus monitor until a capture end condition occurs; and providing the stored digital information. - View Dependent Claims (15, 16, 17, 18)
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19. A memory module of a handheld field maintenance bus monitor, the memory module storing therein software instructions, which when executed by the handheld field maintenance bus monitor provide the following:
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a user interface allowing a technician to define a capture start condition; storage of digital process communications from the process communication loop during the capture period; and an output of the stored digital process communication.
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Specification