Flintec FT-12 Manual - Manual (Page 39)

FT-12 Technical Manual, Rev. 1.35 November 2010 Page 39 of 44
A PPENDIX 4: M ODBUS RTU D ATA S TRUCTURE
If the instrument is programmed for Modbus, it can be used as a Modbus RTU slave on a RS485
communication line or on the Ethernet communication line. The Modbus slave adress is defined in the
parameter [Address]. Function code “0x03” and function code “0x10” are supported.
Read
command
Modbus
register
Function
code
Register
address
No. of
registers
Definition
Display value 40 001 03 00,00 00,02 Current display value; Gross or Net
D0 Busy 1 – System Busy
D1
Data ok
1 – Data ok
0 – Error (See D13…D15)
D2 Motion 1 – Weight is not stable
D3 Net Mode 1 – Net mode
D4 N/A
D5 Output 1
D6 Output 2
D7 Output 3
1 – Output active
D8 Input 1
D9 Input 2
D10 Input 3
1 – Input active
D11
D12
N/A
0 No Errors
1 ADC out of range
2 ADC overrange
3 ADC underrange
4 System fault
Status 40 003 03 00,02 00,01
D13
D14
D15
Transfer
binary (D13
to D15) to
decimal and
compare to
error code
5 FT not in weighing mode
Tare weight 40 004 03 00,03 00,02 Current tare weight
Gross Weight 40 006 03 00,05 00,02 Current gross weight
Setpoint 1 40 012 03 00,0B 00,02 Setpoint 1 buffer memory; replied value in hex
Setpoint 2 40 014 03 00,0D 00,02 Setpoint 2 buffer memory; replied value in hex
Setpoint 3 40 016 03 00,0F 00,02 Setpoint 3 buffer memory; replied value in hex
1 Ready for calibration
3 Zero calibration in process
4 Span calibration in process
9 Error (Refer to D8 ... D15 )
D0…D7
Calibration
Process
Status
1 Calibration Timeout –
Restart calibration
2 ADC Error
– Re-energize the instrument
– If seen again, change board.
3 Instrument cannot be calibrated –
Check load cell cable
– Re-energize the instrument
34 Instrument cannot be calibrated –
Load cell signal is too low or too
high
35 Calibration Error
– Calibration test weight is too
small, increase calibration weight
value (40031-32)
– Check load cell connections
37 Scale unstable
– Wait until scale becomes stable
– Check grounding wiring
38 Calibration Jumper is not installed-
Check Calibration jumper
Calibration
Status
40 033 03 00,01
D8…D15
Calibration
Errors
1 Ready for calibration