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Model 3095FB Multivariable Transmitter with Modbus Protocol
Modbus Protocol Guide
Page 24 of 79
Below is an example of a Modbus message for reading DP (register 401) of 100.25 for each of
the Floating Point Format Codes.
Table 3-6 Floating Point Format Code = 0
Address
Function
Starting reg-
ister
# of registers
Error check
Query
01
04
01 90
00 02
XXXX
Address
Function
Byte count
Register data
bytes
Error check
Response
01
04
04
42 C8 80 00
XXXX
Table 3-7 Floating Point Format Code = 1
Address
Function
Starting reg-
ister
# of registers
Error check
Query
01
04
01 90
00 02
XXXX
Address
Function
Byte count
Register data
bytes
Error check
Response
01
04
04
80 00 42 C8
XXXX
Table 3-8 Floating Point Format Code = 2
Address
Function
Starting reg-
ister
# of registers
Error check
Query
01
04
01 90
00 02
XXXX
Address
Function
Byte count
Register data
bytes
Error check
Response
01
04
04
00 80 C8 42
XXXX
Table 3-9 Floating Point Format Code = 3
Address
Function
Starting reg-
ister
# of registers
Error check
Query
01
04
01 90
00 02
XXXX
Address
Function
Byte count
Register data
bytes
Error check
Response
01
04
04
C8 42 00 80
XXXX