Emerson Process Management 5300 manual System Architecture, 4-20 mA, 20 mA/HART

Reference Manual

00809-0100-4530, Rev BA July 2009

Rosemount 5300 Series

SYSTEM ARCHITECTURE

Figure 2-5. HART system architecture

The Rosemount 5300 Series Radar Transmitter is loop-powered, and it uses the same two wires for both power supply and output signal. The output is a 4-20 mA analog signal superimposed with a digital HART® or FOUNDATION™ Fieldbus signal.

By using the optional Rosemount 333 HART Tri-loop, the HART signal can convert up to three additional 4-20 mA analog signals.

With the HART protocol multidrop configuration is possible. In this case, communication is restricted to digital, since current is fixed to the 4 mA minimum value.

The transmitter can be connected to a Rosemount 751 Field Signal Indicator, or it can be equipped with an integral display.

The transmitter can easily be configured using a Rosemount 375 Field Communicator or a PC with the Rosemount Radar Master software. Rosemount 5300 Series transmitters can also be configured with the AMS® Suite and DeltaV™ software, and other tools supporting Electronic Device Description Language (EDDL) functionality.

For HART communication a minimum load resistance of 250 Ω within the loop is required.

3 x 4-20 mA

Integral Display

5300 SERIES	Rosemount 751
	Field Signal Indicator
RADAR
TRANSMITTER	Rosemount
	333 HART
	Tri-Loop

DCS

4-20 mA/HART

Rosemount 375

Field

Communicator

HART modem

Note! For HART communication, a	Rosemount Radar Master
minimum load resistance of	or
250 Ω within the loop is required.	AMS Suite

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