Flintec FT-13 - Manual (Page 51)

FT-13 Technical Manual, Rev. 1.40 March 2013 Page 51 of 56
A PPENDIX 5: CAN OPEN D ATA S TRUCTURE
The output from FT-13 on PLC requests is in two double words and according to the table below.
FT-13 Output
Bit no.
31
MSB
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
0
LSB
TxPDO 1
(T_DW1)
W31
MSB
W30 W29 W28 W27 W26 W25 W24 W23 W22 W21 W20 W19 W18 W17 W16
W15 W14 W13 W12 W11 W10 W09 W08 W07 W06 W05 W4 W3 W2 W1
W0
LSB
TxPDO 2
(T_DW2)
0 0 0 0 In4 In3 In2 In1 Out8 Out7 Out6 Out5 Out4 Out3 Out2 Out1
Error 0 0 0 0 0 0 0 0
Cmd
Acc
Net MT
Data
OK
Data
Integr.
Here T_DW1 provides the weight information (32-bit signed integer; WXX = Weight bit XX; W31 = MSD; W0 = LSD ) and
T_DW2 provides the status as indicated below.
Bit no. T_DW2 Description in normal operation
31...28 Not used Always 0
27 Digital input 4
Status input bit (1 = active)
26 Digital input 3
25 Digital input 2
24 Digital input 1
23 Digital output 8
Status output bit (1 = active)
22 Digital output 7
21 Digital output 6
20 Digital output 5
19 Digital output 4
18 Digital output 3
17 Digital output 2
16 Digital output 1
15...0 Not used Always 0
15...13 Error
000 No error
001 ADC out
010 ADC over
011 ADC under
100 System error
101 FT-13 not in weighing mode or filling mode
12…5 Not used Always 0
4 Command accepted This bit toggles after a new command has been accepted.
3 Net 0: Gros mode; 1: Net mode
2 Motion 0: No motion; 1: Motion
1 Data Ok 0: Check the error bits; 1: Scale is operating properly
0 Data update in progress
0: PLC should not use the data; 1: use the data
(if 0, the instrument was updating the PLC interface shared memory while data
was read. The PLC interface should ignore this data and rescan.)
Bit no. T_DW2 Description during the calibration
15 … 8 Calibration error
0000 0001 Calibration Timeout – Restart calibration
0000 0010
ADC Error – Re-energize the instrument
– If seen again, change board.
0000 0011
Instrument cannot be calibrated – Check load cell cable
– Re-energize the instrument
0010 0010
Instrument cannot be calibrated – Load cell signal is too low or too
high
0010 0011
Calibration Error
– Calibration test weight is too small, increase calibration weight
– Check load cell connections
0010 0101
Scale unstable – Wait until scale becomes stable
– Check grounding wiring
0010 0110 Calibration Jumper is not installed- Check Calibration jumper