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View Full Version : Foundation Fieldbus device_Testing for complete voltage range


bnshukla
October 19th, 2007, 07:19 AM
Hi,
In order to test H1 Device for complete voltage range.
I need a fieldbus power conditioner to generate fieldbus voltage of 9V to 32V.
It will be great for me. If some of member suggest a part which supports the entire voltage range.

Best Regards
Thanks
Bnshukla

marisg
October 20th, 2007, 02:41 PM
The ideal power conditioner is a 5 mH inductor with a 50 Ohm resistor in series. This can be powered by any ordianry DC power supply. The equivalent of two terminators, 50 Ohms in series with 2 uF capacitor in series, should be used on the device side of the circuit. For more details, see the Fieldbus Wiring Guide at www.relcominc.com (http://www.relcominc.com).