Commands
20
13
-0
3
67
Enhanced read special fixcode (ES)
Command:
Response:
The R/W head attempts to read a
special read only code
until successful. Only
data that changes is transferred via the interface, i.e. the R/W head transfers data
whenever it reads a new data carrier or whenever it reads a data carrier where
there was previously no R/W head within the detection range.
The status '05h' (read command) is output whenever a data carrier leaves the
detection range.
Byte
Content
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (71h)
0
1
1
1
0
0
0
1
Byte 1
Word number/Ident channel/Toggle bit
<FixLen>
<Channel>
<T>
Byte 2
not used
-
-
-
-
-
-
-
-
Byte 3
not used
-
-
-
-
-
-
-
-
Byte 4
not used
-
-
-
-
-
-
-
-
Byte 5
not used
-
-
-
-
-
-
-
-
Byte 6
not used
-
-
-
-
-
-
-
-
Byte 7
not used
-
-
-
-
-
-
-
-
Byte
Content
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (71h)
0
1
1
1
0
0
0
1
Byte 1
Reserved/Ident channel/Toggle bit
-
-
-
-
<Channel>
<T>
Byte 2
Status
<Status>
Byte 3
Reply counter
<ReplyCounter>
Byte 4
ID code 00h ... FFh
<ID code>
Byte 5
ID code 00h ... FFh
<ID code>
Byte 6
ID code 00h ... FFh
<ID code>
Byte 7
ID code 00h ... FFh
<ID code>
Byte 8
ID code 00h ... FFh
<ID code>
Byte 9
ID code 00h ... FFh
<ID code>
Note!
The <FixLen> of IDC-...-1K read/write tags is always 6 bytes.