Emerson 5301HxxxxxxxxxxxxxxZZ Series Reference Manual page 149

Reference Manual
00809-0100-4530
Procedure
1. Select: Overview → Device Information → Identification.
2. Enter desired string into the Message area.
5.9.3 Modbus
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
Baud Rate
Start Bits
Data Bits
Parity
Stop Bits
Address range
(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
Baud Rate
Start Bits
Data Bits
Parity
Stop Bits
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
See Rosemount 5300 with HART to Modbus Converter
Modbus protocol and what strings to use.
®
RTU communication setup
Default Value
9600
(1)
One
(1)
Eight
None
One
246
for details regarding each
Configurable Values
1200, 2400, 4800, 9600,
19200
One
Eight
None, Odd, Even
One or Two
1-255
Value
4800
One
Eight
Odd
Two
Configuration
April 2019
149