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cajetan259
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Join Date: Jul 2009
Location: india
Posts: 15

FIELDBUS Basics

07/10/2009 1:05 PM

whts a fieldbus?how can it b calibrated on the field. voltage can b chkd on the transmitter but milliamps cannot b chkd reason why?does the transmitter has other signals rather than milliamps.how does it work.wht is the funtionality.

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Chris Leonard
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Join Date: Dec 2004
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Good Answers: 35
#1

Re: fieldbus

07/10/2009 1:06 PM

http://en.wikipedia.org/wiki/Fieldbus

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EElectrician
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Join Date: Aug 2008
Location: KY, USA
Posts: 367
Good Answers: 18
#2

Re: fieldbus

07/10/2009 4:26 PM

The Wiki definition of fieldbus in Chris's reply is very good.

You can check milliamps from a transmitter by connecting your ammeter in series with the circuit as shown in this diagram which I borrowed from http://www.doctronics.co.uk/meter.htm. Visit their website for a good explanation of, "why?".

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