Emerson 5400, 5300 specifications Establish Hart Communication, Connect to the MA/MB terminals

Rosemount 5300/5400 Series

Manual Supplement

00809-0500-4530, Rev AA October 2010

ESTABLISH HART

COMMUNICATION

Connect to the MA/MB terminals

Figure 1-8. RS-485 Communication after startup

The Rosemount 5300 Series and Rosemount 5400 Series can be configured using the Rosemount Radar Master (RRM) PC software or a Field Communicator. Configuration is done by sending HART commands through the HART to Modbus Converter (HMC) to the 5300/5400 transmitter electronics. To establish HART communication, connect to the MA/MB terminals, or to the HART terminals. Both alternatives are described below.

The 5300/5400 level transmitter can be configured with RRM using the MA, MB terminals.

An RS-485 Converter is required to connect to the transmitter.

The transmitter will try to establish communication using different protocols during 20 second timeslots from time of startup.

				Configured				Configured
				protocol				protocol
Modbus RTU		HART		(Modbus RTU,		HART		(Modbus RTU,
20 seconds		20 seconds		Levelmaster,		20 seconds		Levelmaster,
				or Modbus				or Modbus
				ASCII)				ASCII)		Time
				20 seconds				20 seconds
0 s	20 s		40 s		60 s		80 s		100 s

The transmitter will continue to use a communication protocol once communication has been established.

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