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LIST OF THE MODBUS PROTOCOL HOLDING REGISTERS
The instrument parameters that can be read or programmed via the communication interfaces available
on the instrument, depending on the hardware configuration, are listed in the following table.
R type registers are readable while W type are writeable.
In case of Modbus TCP protocol, the address of the instrument (the “Unit Identifier” field) must always
be FFh.
If a fieldbus is used (different from the Modbus), only the R or R/W registers will be in the input area
and only the W or R/W registers will be in the output area.
The registers are 16 bit in size.
Address Holding Register
R/W Notes
0001
Status Register
R
See relevant table.
0002
Gross weight (MSB)
R
INT value. - Most significant word
0003
Gross weight (LSB)
R
INT. value - Less significant word
0004
Net weight (MSB)
R
INT. value - Most significant word
0005
Net weight (LSB)
R
INT. value - Less significant word
0006
Peak (MSB)
R
INT. value - Most significant word
0007
Peak (LSB)
R
INT. value - Less significant word
0008
Digital Inputs
R
See relevant table
0009
Digital Outputs
R
0101
Weighted Net weight (MSB)
R
INT. value - Most significant word
0102
Weighted Net weight (LSB)
R
INT. value - Less significant word
0103
Weight code (MSB)
R
INT. value - Most significant word
0104
Weight code (LSB)
R
INT. value - Less significant word
0201
Set-Point 1 (MSB)
R/W INT. value - Most significant word
0202
Set-Point 1 (LSB)
R/W INT. value - Less significant word
0203
Set-Point 2 (MSB)
R/W INT. value - Most significant word
0204
Set-Point 2 (LSB)
R/W INT. value - Less significant word
0501
Data Register (MSB)
W
INT. value - Most significant word (See relevant table)
0502
Data Register (LSB)
W
INT. value - Least significant word (See relevant table)
0503
Command Register
W
See relevant table.
1001
Stand-by function
R/W INT. value
1002
Keypad Lock function
R/W See relevant table
1003
Password function
R/W INT. value
1004
Peak function
R/W See correspondence on page 47
1005
Data-Logger function
R/W See correspondence on page 48
1006
Data-Logger Trigger
R/W See correspondence on page 48
1007
Data-Logger function
R/W See correspondence on page 48
1101
Weight division value (*)
R/W
See relevant table.
1102
Decimals (*)
R/W
1103
Capacity of load cells (MSB) (*)
R/W INT. value - Most significant word
1104
Capacity of load cells (LSB) (*)
R/W INT. value - Less significant word
1105
Sensitivity of load cells (*)
R/W INT. value
1106
Fixed Tare (MSB) (*)
R/W INT. value - Most significant word
1107
Fixed Tare (LSB) (*)
R/W INT. value - Less significant word
1108
Gravity Calibration (MSB) (*)
R/W INT. value - Most significant word
1109
Gravity Calibration (LSB) (*)
R/W INT. value - Less significant word
ADN
Pesage