23
23
E
Sub-
Meaning
Function Description
address
01
HEX
Error code
Error number is entered if command was incorrectly processed
or aborted. Only valid with AF bit!
00
HEX
No error.
01
HEX
Reading or writing not possible because no data carrier is
present in the active zone of a read/write head.
02
HEX
Read error.
03
HEX
Data carrier was removed from the active zone of the read/write
head while it was being read.
04
HEX
Write error.
05
HEX
Data carrier was removed from the active zone of the read/write
head while it was being written.
07
HEX
AV-Bit is set but the command designator is missing or invalid.
or:
Number of bytes is 00
HEX
.
09
HEX
Cable break to select read/write head, or head not connected.
If the command designator 03
HEX
with head number 03
HEX
was
used to select both read/write heads, it may be that one head is
not connected. If both read/write heads are selected, the cable
break message is suppressed if a data carrier was recognized in
front of a connected, fully functional read/write head.
0D
HEX
Faulty communication with the data carrier.
Note:
Check installation criteria or distance of the data carrier
from the read/write head.
0E
HEX
The CRC of the read data does not coincide with the CRC of
the data carrier.
(continued on next )
Function Description
Description of
Input Buffer
(continued)
Please note the basic
procedure on 25
and the examples on
26 to 34.
Please note:
All commands
affecting Head 2 are
invalid in all versions
for a single read/
write head.
C6_2-019_641365_0506-e.p65
24
24
E
Sub-
Meaning
Function Description
address
01
HEX
Error code (continued)
0F
HEX
Contents of the 1st and 2nd bit header (1st and last bytes) of
the output buffers are not identical. (2nd bit header must be
activated).
or:
Head Number
If both read/write heads are selected, the number of the head
used is written here after a successful read or write process:
Head 1
31
HEX
Head 2
32
HEX
Head number 3 = 33
HEX
will be written if dynamic operation
has been selected. Hence the data read with a read command
are beginning with subaddress 02
HEX
of the input buffer.
or:
Data
Data which was read from the data carrier
(for exception see Head Number above).
02
HEX
Data
Data which was read from the data carrier.
...
Data
Data which was read from the data carrier.
Last byte
Data
Data which was read from the data carrier.
or:
2nd Bit header
The data are valid if the 1st and 2nd bit headers are in
agreement.
Description of
Input Buffer
(continued)
Please note the basic
procedure on 25
and the examples on
26 to 34.
Function Description
Please note:
All commands
affecting Head 2 are
invalid in all versions
for a single read/
write head.