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Transponders / ID cards
8.3
Data formats of the Transponder
8.3.1
BCD format
22
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Fire & Security Products
The block to be read can be addressed directly (e.g. by block number) or indirectly
to the memory block of the transponder (e.g. in case of Mifare
MifareApplicationDirectory).
Access to a block with written data is to be set with the different configuration
parameters of the card reader AR6181-MX.
Parameters to access a personalized block:
Block address (for more information please refer to chapter 10 under
SL_BLOCK).
Access protection (see above)
Start and end of ID number in block (for more information please refer to
chapter 8.3).
Format of ID number (for more information please refer to chapter 8.3).
Details about the respective parameters are listed in the individual chapters.
The following data formats of the transponder can be used:
Serial number:
Binary, max. 40 bits (5-byte)
ID number:
BCD (4-bit) format
ASCII (7-bit) format
Wiegand format
The BCD format consists of numerical values 0-9 and uses a half byte each
(4-bit). Two values each are saved in one byte of the ID card.
The data stored on the ID card are max. 32 characters long:
00 01 23 45 67 89 00 00 00 00 00 00 00 00 00 00 (Hex)
The length is defined with the parameters ID_START and ID_LEN. For more
information please refer to chapter 10 under
The transfer is carried out per numerical value (in ABA format).
Example:
10 10 10 01 02 13 04 15 16 07 08 19 10 10 10 10 10 . . . . 10 10 10
ID_START
and
ID_LEN
.
12.2004
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