Connect to the Hart terminals

Rosemount 5300/5400 Series

Manual Supplement

00809-0500-4530, Rev AA October 2010

6.Connect to the transmitter and perform the necessary configuration.

7.After completing the configuration, disconnect the RS-485 Converter, connect the Modbus communication wires and cycle power to the transmitter

8.Verify communication between the transmitter and the RTU is established (can take up to 60 seconds from startup).

NOTE

Take the following into consideration if there are multiple 5300/5400 Modbus units 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:

1.Select the Scan by Tag option in the Search Device window in RRM and 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.

2.Make sure the 5300/5400 transmitter is alone on bus. Disconnect or turn off power from any other devices.

To configure the 5300/5400 transmitter, connect the communicator or PC to the HART terminals using a HART modem, see Figure 1-3 on page 1-6. Both the configuration tool and the RS-485 bus can be connected simultaneously. Configuration data is sent with HART commands through the HMC to the 5300/5400 transmitter electronics, as illustrated in Figure 1-1 on page 1-3. Note that the power supply must be connected during configuration, see also “Electrical Installation” on page 1-4.

NOTE

Measurement data is not updated to the Modbus Master when a configuration tool is connected.

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