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Old May 1st, 2007, 01:52 PM
marisg marisg is offline
Fieldbus Member
Join Date: Dec 2004
Posts: 47

Please provide a little more information about your problem:

+ What do you have operating in your plant that could cause the 3 V spikes on the fieldbus cable?
+ Can you describe the spikes -- rise and fall times, duration, etc.
+ What is the length of the fieldbus cable?
+ Is the fieldbus cable's shield grounded in only one place?
+ Is the fieldbus cable in the same conduit or the same cable tray as power or VFD cables?

Maris Graube


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