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Ident-I • IRI-KHD2-4HB5 / IRI-KHA6-4HB5
Operation with the INTERBUS
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
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In the default state, the four data fields are read in a cycle one after the other.
The sequence is maintained by the bus:
The individual read head data are arranged as follows:
7.2.2
Command data
Eight bytes are available for control of the identification system. Of these, however,
only the first four are used. The base structure of these four command data bytes is
as follows:
LK1
LK2
LK3
LK4
4 x 32 bits = 16 bytes
Byte 0
Byte 1
Byte 2
Byte 3
•••
Byte 0
Byte 1
Byte 2
Byte 3
Read head 1
Read head 4
Bit No.
7
0
7
0
7
0
7
0
Byte No.
0
1
2
3
Read head 1
E2/E3
LN
W1
W2
W3
D1
D2
D3
D4
Read head 2
E2/E3
LN
W1
W2
W3
D1
D2
D3
D4
Read head 3
E2/E3
LN
W1
W2
W3
D1
D2
D3
D4
Read head 4
E2/E3
LN
W1
W2
W3
D1
D2
D3
D4
1 Bit
3 Bit
Code (28 Bit)
E2/E3:
Status bit
0: Code carrier is in front of the read head
1: Code carrier is not in front of the read head
LN:
Read number. Is increased by 1 with each new reading; in event of
overflow (7
hex
) the counter is reset.
Wx:
Wafer number in binary form (12 bit)
Dx:
Chip number in binary form (16 bit)
Bit No.
7
6
5
4
3
2
1
0
Byte 0
UC
DS
DC
SS4
SS3
SS2
SS1
Byte 1
Byte 2
ST4
ST3
ST2
ST1
Byte 3
SUB
Byte 4 ... 7