FAD-40 Technical Manual, Rev.2.1.0; February 2022
Page 47 of 55
9.6. CANopen Data Structure (for FAD-40CO only)
Hardware Configuration Hint
To install the FAD-40CO into the PLC Hardware Configuration use the ESD file memory parts to create
exactly
the following memory structure:
•
Input 2 Words
•
Output 2 Words
•
Input 2 Words
•
Input 2 Words
•
Output 2 Words
•
Output 2 Words
FAD-40CO Output to PLC Input
Dword
D31 D30 D29 D28 D27 D26 D25 D24 D23 D22 D21 D20 D19 D18 D17 D16
D15 D14 D13 D12 D11 D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
TxPDO 1
(T_DW1)
reserved
TxPDO 2
(T_DW2)
W31
MSB
W30 W29 W28 W27 W26 W25 W24 W23 W22 W21 W20 W19 W18 W17 W16
W15 W14 W13 W12 W11 W10 W9
W8
W7
W6
W5
W4
W3
W2
W1
W0
LSB
TxPDO 3
(T_DW3)
Not in use
I/O2
in
I/O3
in
I/O3
out
I/O2
out
I/O1
out
Error codes of converter Not in use
Op.
mode
Zero
range
Gross
Net
MD
Read command response
Cmd
Flag
FAD-40CO Output to PLC Input T_DW2
T_DW2 contains the weight value respective the calibration information according to the “read command
response” (Refer to PLC Output to FAD-30CO Input T_DW3).
Calibration Status
Bit no.
TxPDO 2 (T_DW2) descriptions when read command is ‘Calibration Status’.
Refer to PLC Output to FAD-40CO Input R_DW3
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-40CO Input R_DW2 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)
