Emerson Rosemount 5300 Series - Page 149

Procedure
1. Select: Overview → Device Information → Identification.
2. Enter desired string into the Message area.
See Rosemount 5300 with HART to Modbus Converter for details regarding each
Modbus protocol and what strings to use.
5.9.3 Modbus
®
RTU communication setup
The Rosemount 5300 is configured with the default Modbus RTU address 246, and with
the following Modbus RTU communication parameter default settings:
Table 5-6: Modbus RTU Communication Parameters
Parameter Default Value Configurable Values
Baud Rate 9600 1200, 2400, 4800, 9600,
19200
Start Bits
(1)
One One
Data Bits
(1)
Eight Eight
Parity None None, Odd, Even
Stop Bits One One or Two
Address range 246 1-255
(1) Start Bits and Data Bits cannot be changed.
To reset the communication parameters to default Modbus RTU settings, use the
following Modbus Message:
HMC
Modbus RTU parameter configuration
You want to use address 44 for the Rosemount 5300 Level Transmitter, and the following
communication parameters are used by the host:
Table 5-7: Communication Parameters Used by the Host (Example)
Parameter Value
Baud Rate 4800
Start Bits One
Data Bits Eight
Parity Odd
Stop Bits Two
To configure the Rosemount 5300 Level Transmitter to communicate with the Host in this
example, the following text string is written to the HART Slave 1 message area:
HMC A44 B4800 PO S2.
Reference Manual Configuration
00809-0100-4530 April 2019
Reference Manual 149