Identification
Manual
ID ISC.MR102
FEIG ELECTRONIC GmbH
Page 37 of 153
H01113-4e-ID-B.docx
4.6. CFG5: Anticollision
The parameters of the CFG5 configuration block contain anticollision settings.
Byte
0
1
2
3
4
5
6
Contents TIMESLOTS
5
0x00
0x00
0x00
0x00
0x00
0x00
Default
0x31
Byte
7
8
9
10
11
12
13
Contents
0x00
0x00
0x00
0x00
Anticollision
0x00
0x00
Default
0x04
TIMESLOTS
1
:
(only I-Code 1 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:
…
(
Transponder.HF.ICode1.Anticollision.MinimalTimeslots)
Minimum number of timeslots.
MAX-TS:
…
(
Transponder.HF.ICode1.Anticollision.MaximalTimeslots)
Maximum number of timeslots.
MIN-TS / MAX-TS
Number of Timeslots
b011
b010
b001
b000
16
8
4
1
Each I-Code 1 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.
Anticollison:
(ISO15693 / I-Code 1 Transponders)
( Transponder.Anticollision.Enable)
b0:
anticollision disabled
b1:
anticollision enabled
5
A reasonableness check is performed by writing this parameter to the Reader. If an error occurs the Read-
er answers with STATUS = 0x11.