Flintec FT-11D - Manual (Page 45)

FT-11(D) Technical Manual, Rev. 1.35 November 2010 Page 45 of 52
Appendix 5: Profibus DP / ProfiNet Data Structure (FT-11 only)
The output from FT-11 on PLC requests is in four words and according to the table below.
FT-11 Output
Bit no. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1 st Word
W31
MSB
W30 W29 W28 W27 W26 W25 W24 W23 W22 W21 W20 W19 W18 W17 W16
2 nd Word W15 W14 W13 W12 W11 W10 W9 W8 W7 W6 W5 W4 W3 W2 W1
W0
LSB
3 rd Word Error 0 MR In3 In2 In1 Out3 Out2 Out1 0 Net MT
Data
Ok
Data
Integrity
4 th Word Not in use
Here the first and the second word provide the weight information (32-bit signed integer or 32-bit signed floating
point, see chapter 8.4.2 respective 8.5.2; WXX = Weight bit XX; W31 = MSD; W0 = LSD ) and the third word is
the status as indicated below.
Bit no. 3 rd Word Description in normal operation
15
14
13
Error
000 No error
001 ADC out
010 ADC over
011 ADC under
100 System error
101 FT-11 not in weighing mode
12 Not Used Always 0
11 MR Single Range: always 0 Multi Range: 1. Range = 0 2. Range = 1
10 Digital Input 3
9 Digital Input 2
8 Digital Input 1
Input bit status ( Active = 1 )
7 Digital Output 3
6 Digital Output 2
5 Digital Output 1
Output bit status ( Active = 1 )
4 Not Used Always 0
3 Net 0: Gross Mode; 1: Net Mode
2 Motion 0: Motion ; 1: No 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. 3
rd
Word Description during the calibration
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
15 … 8 Calibration error
0010 0110 Calibration Jumper is not installed- Check Calibration jumper
0000 0001 Ready for calibration
0000 0011 Zero calibration in process
0000 0100 Span calibration in process
7...0 Calibration status
0000 1001 Calibration error (see bit 15...8)