HMC
These three letters are used for safety and will eliminate the risk of changing the
configuration data by mistake.
A44
A indicates that the following number is the new address (address 44). Leading
zeroes are not needed.
B4800
B indicates that the following number is the new baud rate (1200, 2400, 4800,
9600, 19200).
PO
P identifies the following letter as parity type (O = odd, E = even, and N = none).
S2
S indicates that the following figure is the number of stop bits (1 = one, 2 = two).
Only values that differ from the current values need to be included. For example, if only
the address is changed, the following text string is written into the 5300 (HART Slave 1)
message area:
HMC A127,
(5)
5.9.4
Levelmaster communication setup
The default and configurable parameter values can be found in Table 5-8.
Table 5-8: Levelmaster Communication Parameters
Parameter Default value Configurable value
Baud Rate 9600 1200, 2400, 4800, 9600,
19200
Start Bits One One
Data Bits Seven Seven, Eight
Parity None None, Odd, Even
Stop Bits One One or Two
Address 1 1-99
To reset the communication parameters to default Levelmaster settings, use the following
Modbus Message:
HMC M2
Levelmaster parameter configuration
You want to use address 2 for the Rosemount 5300 Level Transmitter and the host uses
the following parameters:
Table 5-9: Levelmaster Communication Parameters
Parameter Value
Baud Rate 9600
Start Bits One
Data Bits Seven
(5) This message indicates that 127 is the new address.
Configuration Reference Manual
April 2019 00809-0100-4530
150 Rosemount 5300 Level Transmitter
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