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resh_cop11
Active Contributor

Join Date: Jun 2011
Posts: 20

Hart vs Foundation Fieldbus

02/27/2012 8:38 AM

what diffrent between foundation fieldbus and hart? and what disadvantage and advantage?
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Anonymous Poster #1
#1

Re: hart vs foundation fieldbus

02/27/2012 8:46 AM

http://www.wikipedia.org/
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naveen_menon
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India - Member - Naveen Menon Engineering Fields - Instrumentation Engineering - Naveen Menon

Join Date: Oct 2007
Location: India
Posts: 92
Good Answers: 2
#2

Re: Hart vs Foundation Fieldbus

02/27/2012 10:58 PM

Foundation Fieldbus is a true Multidrop System and has numerous advantages

including:

- Wiring savings

- Hardware savings-fewer devices (instruments barriers and I/O)

- Documentation savings-Simpler layout and drawings

- Reduced Engineering costs

- Footprint savings

- Multi-variable field devices

- Interoperability and freedom of choice

- Reduced Commissioning and startup costs

- Reduced downtime

- Integrity improved

- DCS future capacity savings

- Control in the field

- Device Plug and Play

- On line configuration

- Time Stamping and Synchronisation

- Obsolescence Robustness

- Status Information

- Tag Search Capability

- Interface to High Speed Ethernet

-Trend storage in the field device

- Predictive Maintenance

- DCS future capacity savings

- Automated data collection for asset management

http://www.iceweb.com.au/Instrument/FieldbusPapers/HART%20v%20FF%20PAPERfinal.pdf
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slandau
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Join Date: Apr 2011
Posts: 27
#3
In reply to #2

Re: Hart vs Foundation Fieldbus

03/07/2012 9:24 AM

You should also look at the full cost of the loop. With hart, you have the I/O card, and with FF, no card but transmitters cost more $. I have found FF is most useful when you have long distances between points, and everything needs to be I/S (class1 div1). Otherwise standard I/O cards and hart transmitters are still more cost effective.
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