20
13
-0
3
74
Commands
write param (WP)
Command:
Response:
Byte
Contents
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (BFh)
1
0
1
1
1
1
1
1
Byte 1
reserved/Ident channel/Toggle bit
0
<Channel>
<T>
Byte 2
reserved
0
Byte 3
System code
<SystemCode>
Byte 4
Parameter type
<ParamTyp> (High Byte)
Byte 5
Parameter type
<ParamTyp> (Low Byte)
Byte 6
Data length in bytes
<DataLen> (High Byte)
Byte 7
Data length in bytes
<DataLen> (Low Byte)
Byte 8
Data 00 ... FFh
<Data>
...
Data 00 ... FFh
<Data>
Byte N
1)
Data 00 ... FFh
<Data>
1)
N = <DataLength> + 7
Byte
Contents
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (BFh)
1
0
1
1
1
1
1
1
Byte 1
reserved/Ident channel/Toggle bit
0
<Channel>
<T>
Byte 2
Status
<Status>
Byte 3
Reply counter
<ReplyCounter>
Byte 4
not used
-
-
-
-
-
-
-
-
Byte 5
not used
-
-
-
-
-
-
-
-
IQH2-...:
<SystemCode> =
'Q' ASCII (51
h
)
<ParamTyp>
=
'K1' ASCII (4B
h
31
h
)
RP
: reads the key (12 characters ASCII from 0 ... F)
from the transponder and the read head
WP
: writes the key (12 characters ASCII from 0 ... F)
into the read head
Default key = 'FF FF FF FF FF FF' ASCII
(46
h
46
h
46
h
46
h
46
h
46
h
46
h
46
h
46
h
46
h
46
h
46
h
)
IUH-...:
See handbook of the read / write head
