OBID i-scan
®
System-Manual
ID ISC.MR/PR/PRH101
FEIG ELECTRONIC GmbH
Page 98 of 131
H60301-3e-ID-B.doc
b0011
(3) = write request with Option “1”
The Reader tries to sample the response after ISO15693-3 T1 ( 318,6
µ
s ....
323,3
µ
s), if there is no response the Reader sends a EOF after EOF-PULSE-DELAY
and tries to sample the response after ISO15693-3 T1 ( 318,6
µ
s .... 323,3
µ
s)
b0100
(4) = inventory request
The Reader tries to sample the response after ISO15693-3 T1 ( 318,6
µ
s ....
323,3
µ
s). If ISO15693 “Nb_slot_flag” Flag is:
“0” the Reader sends a EOF after EOF-PULSE-DELAY and tries again to sam-
ple the response in the next timeslot ( after ISO15693-3 T1 ( 318,6
µ
s
.... 323,3
µ
s)). This is done 16 times.
In this case the RSP-LENGTH defines the response length in one time-
slot. Transponder responses with other response length will be ignored.
If there is a CRC error in one of the timeslots the protocol status is set
to 0x02 [CRC error]. The user should calculate which Transponder data
hold the CRC error.
“1” the Reader sends back the received data.
b0101
(5) = write request with Option “0” and grid position of response
The Reader tries to sample the response after ISO15693-3 T1 ( 318,6
µ
s ....
323,3
µ
s). If there is no response the Reader tries to sample at the time/grid specified
in MULTIPLE 302us GRIDS. If there is no response the command sends back
Status “no. Transponder” [0x01].
Depending on the ERROR_Flag in the Transponder response the length of the sam-
pled data is:
-
4 Byte if ERROR_FLAG is “1”.
-
REP-LENGTH if ERROR_FLAG is “0”
HDR_RL: (
from firmware version 1.04.06)
b0
Switch off use of High Data Rate(53kBit/s) for Return Link
b1
Switch on use of High Data Rate(53kBit/s) for Return Link
RSP-LENGTH:
Length of the Transponder response in bit without SOF and EOF. During write operations
REP-LENGTH is depending on ERROR_FLAG in the Transponder response:
-
4 Byte if ERROR_FLAG is “1”.
-
– REP-LENGTH if ERROR_FLAG is “0”
reserved (CMD-RSP-DELAY)
In MR/PR/PRH protocol not used. To avoid problems with other OBID
®
i
-scan
Readers value
should be value of response delay for Transponder response (ISO15693: t1)
e.g. ISO15693 average value: 0x021F * 590ns = 320,9µs
