Sierra Foundation Fieldbus 600 Series, Instruction Manual, Page: 15 / 18

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Chapter 6 – Available Modbus Registers
Although most users will be satisfied using the default configuration, other Modbus registers
can be configured for Foundation Fieldbus access. Below (Table 3) is a list of all available
Modbus registers. These would need to be configured in the transducer block.
Register Description Read
Write Data type
0 Actual flow - high word R 32 bit Float
1 Actual flow - low word
2 Totalizer - high word R Unsigned long integer
3 Totalizer - low word
4 User full scale R/W Unsigned short integer
5 Factory full scale R Unsigned short integer
6 K-Factor R/W Unsigned short integer
7 Total reset R/W Unsigned short integer
8 Calibration date - high word R Unsigned long integer
9 Calibration date- low word R
10 Flow unit - char 1,2 R Unsigned short integer, 2 Char ASCII String
11 Flow unit - char 3,4 R Unsigned short integer, 2 Char ASCII String
12 Flow unit - char 5,6 R Unsigned short integer, 2 Char ASCII String
13 Totalizer unit- char 1,2 R Unsigned short integer, 2 Char ASCII String
14 Totalizer unit- char 3,4 R Unsigned short integer, 2 Char ASCII String
15 Serial number – char 1,2 R Unsigned short integer, 2 Char ASCII String
16 Serial number – char 3,4 R Unsigned short integer, 2 Char ASCII String
17 Serial number – char 5,6 R Unsigned short integer, 2 Char ASCII String
18 Serial number – char 7,8 R Unsigned short integer, 2 Char ASCII String
19 Serial number – char 9,10 R Unsigned short integer, 2 Char ASCII String
20 Serial number – char 11,12 R Unsigned short integer, 2 Char ASCII String
26 Decimal point – flow/totalizer R Unsigned short integer
31 Total in 32 bit float - Lo word R 32 bit Float
32 Total in 32 bit float - Hi word
Table 3: All Available Modbus Registers