After a while the Search Device window presents a list of found transmitters.
d) Select the device from the list and select OK to connect.
6. After completing the configuration, disconnect the RS-485 Converter, connect the
Modbus communication wires and cycle power to the transmitter.
7. Verify communication between the transmitter and the RTU is established (can take
up to 60 seconds from startup).
Establish communication when multiple 5300/5400 Modbus
units are on the bus
By default, the transmitters have HART address 1. It will not be possible to establish
communication on HART address 1 if several transmitters have the same address. In this
case, there are alternative solutions to establish communication:
Procedure
1. Select Device → Search.
2. In the Search Device window, select Scan by Tag.
3. Enter the HART Device Tag of the transmitter. Communication can now be
established with an individual transmitter even if several devices have the same
HART address.
4. Make sure the Rosemount 5300 is alone on bus. Disconnect or turn off power from
any other devices.
5.4.2
Connect to the HART terminals
To configure the Rosemount 5300 Level Transmitter, connect the communicator or PC to
the HART terminals using a HART modem, see Figure 4-8. Both the configuration tool and
the RS-485 bus can be connected simultaneously. Configuration data is sent with HART
commands through the HART to Modbus Converter (HMC) to the Rosemount 5300 Level
Transmitter electronics, as illustrated in Figure K-1. Note that the power supply must be
connected during configuration.
Reference Manual Configuration
00809-0100-4530 April 2019
Reference Manual 121
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