2
011-
08
12
IC-KP-B6*
Communication in "IRI-B6" mode
The execution counter increases every time the identification system sends a
message. At the same time, the head number, status, read error flag, reading
numbers and read only code data fields are set according to the message from
the identification system. The read error flags are treated differently, depending on
the command.
The reading numbers increase when the identification system receives read data
(status 0). Only the reading number in the data field assigned to the head number
sent by the information system is increased. The reading numbers does not
increase if the identification system reports an error (status 4, 5, 6).
The read error flag is deactivated for the
SF
,
AF
and
BF
commands and always
remains 0.
The following applies for the
EF
command: The read error flag is reset (=0) as
soon as the identification system receives some read data (status 0). The read
error flag is set as soon as the identification system reports a read error (status 5)
and remains unchanged with other fault messages (status 4, 6).
The following example shows a command sequence.
Command: Single read read only code
with head 2, without double side mode
DP master sequence
= 1003hex
Response from the control interface on the DP master
Single
commands are executed once and the result (success or failure) is output.
Command (B4 ... B1)
0001b
SF
(Single read read only code)
Double side (DS)
0b
Double side mode OFF
Head number (K3 ... K1)
001b
Head number 2 is addressed
Toggle flag (T)
1b
(or 0, depending on the previous state after
initial command or switching on = 1)
Word 0
Commands and parameters
B4
B3
B2
B1
DS 0
T2
T1
N4 N3 N2 N1 K3
K2 K1
T
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
1
