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OBID i-scan
®
System-Manual
ID ISC.MR200
FEIG ELECTRONIC GmbH
Page 37 of 144
H40801-5e-ID-B.doc
3.7. CFG5: Anticollision
The parameters of the CFG5 configuration block contain anticollision settings.
Byte
0
1
2
3
4
5
6
Contents
TIMESLOTS
1
0x00
0x00
0x00
0x00
0x00
0x00
Default
0x30
Byte
7
8
9
10
11
12
13
Contents
0x00
0x00
0x00
0x00
ONT
0x00
0x00
Default
0x05
TIMESLOTS
1
:
(only I-Code UID and EPC Transponders)
Number of timeslots with which Transponders will be read.
Bit:
7
6
5
4
3
2
1
0
Function
0
MAX-TS
0
MIN-TS
MIN-TS:
Minimum number of timeslots.
MAX-TS:
Maximum number of timeslots.
MIN-TS / MAX-TS
Number of Timeslots
b111
b101
b100
b011
b010
b001
b000
128
64
32
16
8
4
1
Each I-Code UID and I-Code EPC Transponder responds in a chosen timeslot. Choosing too
much timeslots compared to the number of Transponders in the antenna field means that only
a small number of Transponders can be selected at one time. On the other hand are too
many timeslots is very time consuming. The optimum number of timeslots is about twice the
number of Transponders expected in the antenna field at the same time.
The Reader calculates the expected number of Transponders and sets the corresponding
number of timeslots between MIN-TS and MAX-TS. To set up a fixed timeslot, both MIN-TS and
MAX-TS must contain the value of the desired timeslot.
1
A reasonableness check is performed by writing this parameter to the Reader. If an error occurs the Reader
answers with STATUS = 0x11.