FAD-40 Technical Manual, Rev.2.1.0; February 2022
Page 34 of 55
Calibration Status
Bit no.
2
nd
Dword descriptions when read command is ‘Calibration Status’.
Refer to PLC Output to FAD-40Px Input 3
rd
Dword
D31…D16 Not in use
D15…D8
Calibration
error
0000 0001
Calibration timeout: - Restart calibration
0000 0010
ADC error: - Re-energize the instrument
0000 0011
Instrument cannot be calibrated
- Check load cell cable; - Re-energize the instrument
0010 0010
Instrument cannot be calibrated
- Load cell signal is very low or too high
0010 0011
Calibration Error
- Calibration test weight is too small; Increase calibration weight
value (Write test weight value from PLC Output to FAD-30Px
Input 2
nd
Dword then restart the calibration)
- Check load cell connections
0010 0101
Scale unstable: - Wait until scale becomes stable
- Check ground wiring
D7...D0
Calibration
process
status
0000 0001
System ready for calibration
0000 0011
Zero calibration in process
0000 0100
Span calibration in process
0000 1001
Error (Calibration error)
FAD-40Px Output to PLC Input 3
rd
Dword
Bit no.
3
rd
Dword Description
D31…D21 Not in use
D20
Input for I/O2
D19
Input for I/O3
D18
Output for I/O3
D17
Output for I/O2
D16
Output for I/O1
D15…D12
Error codes of
converter
0000
No error found
0001
ADC out
0010
ADC over
0011
ADC under
0100
System error
0101
In setup mode
0110
Low/High voltage error
0111
Instrument not found
D11…D10 Not in use
D9
Operation mode
0
Weight & Force Mode
1
Count Mode
D8
Zero range
0
Weight is out of zero range
1
Weight is in of zero range
D7
Indication
0
Gross
1
Net
D6
MD
–
Motion detection
0
Stable
1
Unstable
D5
D4
D3
D2
D1
Read command
response
00000
Indicated weight
00001
Gross weight
00010
Tare weight
00011
Indicated weight (floating point type)
00100
Gross weight (floating point type)
00101
Tare weight (floating point type)
10000
Calibration Status (Refer to table 8.2)
D0
CMD flag
A change of Flag indicates: The command is applied successfully
