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Difference between Fieldbus, Profibus and HART Protocols

S Bharadwaj ReddyJanuary 12, 2019June 13, 2019

The method of representing, encoding, and transmitting the data is called the protocol. At the field level, the dominant protocols for process instruments are HART, FOUNDATION Fieldbus H1 and PROFIBUS

What is HART Protocol ?

S Bharadwaj ReddyJune 19, 2016December 6, 2016

HART Overview The majority of smart field devices installed worldwide today are HART-enabled. But some new in the automation field may need a refresher on this powerful technology. Simply put,

Why 4-20 mA Standard is so popular ?

S Bharadwaj ReddyApril 8, 2016June 29, 2019

4-20 mA Standard 4-20mA has an inherent ‘live zero’. Zero engineering units is 4.0mA, not 0.0mA. 0.0mA indicates an open circuit, a failure or a fault mode like cut wires

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