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Manual Supplement
00809-0500-4530, Rev AA
October 2010
Rosemount 5300/5400 Series
1-10
ESTABLISH HART
COMMUNICATION
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.
Connect to the MA/MB
terminals
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.
Figure 1-8. RS-485 Communication
after startup
The transmitter will continue to use a communication protocol once
communication has been established.
HART
20 seconds
Modbus RTU
20 seconds
Configured
protocol
(Modbus RTU,
Levelmaster,
or Modbus
ASCII)
20 seconds
HART
20 seconds
Time
0 s 20 s 40 s 60 s 80 s 100 s
Configured
protocol
(Modbus RTU,
Levelmaster,
or Modbus
ASCII)
20 seconds