Flintec FAD-40 Series, Техническое руководство

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FAD-40 Technical Manual, Rev.2.1.0; February 2022 Page 27 of 55
5.6. Modbus RTU (for FAD-40MB only)
If the FAD-40MB instrument is setup for Modbus, it can be used as a Modbus RTU slave in a RS-485
communication network. Function codes ‘0x03’ and ‘0x10’ are supported. For RS-485 setup please refer to
chapter 5.3.2, for the Modbus data structure please refer to chapter 5.11.
5.7. Modbus Data Structure (for FAD-40MB and FAD-40EN only)
Address R/W Word Command Definition
40001 R 2 Weight / Force / Count Data
40003 R 1 Status
D0 0
– System Ready
1
– System Busy
D1 0
– Error
1
– Data ok
D2 0
– Weight Stable
1
– Weight unstable
D3 0
– Gross Mode
1
– Net mode
D4 Not Used
D5 0
– Weight / Force
1
– Count Mode
D6…D11
Not used
D12 0
– Out of zero range 1 – Weight is in zero range
D13
D14
D15
Error Code
0 No Errors
1 ADC out of range
2 ADC over range
3 ADC under range
4 System error
5 In setup mode
6 Low/High voltage det.
40004 R 2 Tare weight
40006 R 2 Gross weight
40008 R 1 Status Motion, Net mode, Data ok, (image of register 40003)
40009 R/W 1 Control
0 None
1 Zero
2 Tare
3 Clear
40010 R/W 1 Calibration
0 None
188 Adjust Zero Calibration
220
Adjust Span Calibration (First load calibration weight
on scale and load 40011 with span test weight value)
40011 R/W 2 Span Calibration Value
40013 R 1
Calibration
Status
D0 .. D7
Calibration
Process
Status
1 Ready for calibration
3 Zero calibration in process
4 Span calibration in process
9 Error (Refer to D8 ... D15 )
D8…D15
Calibration
Errors
1
Calibration Timeout
- Restart calibration
2
ADC Error
- Re-energize the instrument
- If seen again, change the board.
3
Instrument cannot be calibrated
- Check load cell cable
- Re-energize the instrument
34
Instrument cannot be calibrated
- Load cell signal is very low or too high
35
Calibration Error
- Calibration test weight is not enough
- Increase calibration weight value (40011)
- Check load cell connections
37
Scale unstable
- Wait until scale become stable
- Check grounding wiring
40014 R/W 1
Operation Mode
Selector
0 Count Mode Unipolar
1 Count Mode Bipolar