Software
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Automation Panel 9xD - Hygienic design User's manual V 1.80
Default key (when tags are delivered): 0xFF FF FF FF FF FF
Up to 16 keys (0 to 15) can be stored in EEPROM for each key (A and B).
7.4.3.3 Access rights and memory organization
The tag is divided into 16 sectors of 4 blocks each. Each block contains 16 bytes. The 4th block in each sector
contains the keys and access rights for the respective sector (sector trailer). Access rights can be assigned indi-
vidually to each block. Each sector can be assigned one of two different keys (A or B).
These keys and access rights must be stored in a defined format (according to the MIFARE specification). To
change these access rights, use command "write" to write to the respective sector trailer in the proper format.
This documentation will not go into further detail with regard to the memory organization and access rights of tags.
For additional information, see data sheet "MIFARE standard card IC MF1 IC S50 functional specification".
7.4.3.4 Value block
A block can be used as a value block. A value block is a signed 4-byte value. With each command (read, increment,
decrement, restore), the tag automatically increments/decrements the value without requiring the value to be read.
In order to use a block as a value block, it must adhere to a defined format.
This documentation will not go into further detail with regard to the value blocks of tags. For additional information,
see the attached data sheet "MIFARE standard card IC MF1 IC S50 functional specification".