76
8.4.2 Size of output signals for different types of classes
The signals are always sent in units of 48 bits, equal to how many classes are selected.
The data transfer passes as follows: first the zero-bits, the X classes «Within tolerance»,
«Rework» (yellow) and «Reject» (red).
RJ12435
0 00000000 00000000 00000000 00000000 00000000
RJ124356 7890
0000 00000000 00000000 00000000 00000000
RJ124356 78901234 567890
00 00000000 00000000 00000000
RJ124356 78901234 56789012 34567890 12345678 90
000000
5
10
20
40
Nb classes
5
10
20
40
bit 48
bit 1
Electric way map, type of shifts 74HC595 – Number of chosen classes = 10.
The bit of the chosen class, changes from 0 to 1.
Data
Form :
RJ1234567890
000000000000000000000000000000000000
48
e
bit
envoyé
1
er
bit
envoyé
SCK
RCK
SER
SCLR
Q'
74HC595
G
SCK
SER
Strobe
Clock
DATA
Vcc
LSB
H
Q
A
Q
H
RCK
SCLR
Q
H
MSB
74HC595
Q'
H
Q
A
G
RESET
R
J
1
2
3
4
5
6
7
8
9
10
ULN 2803
ULN 2803
The circuit for 5, 10, 20 and 40 classes can be provided against request.
Nb classes
48
th
bit
sent
1
st
bit
sent