7 Modbus API
Modbus API allow user to:
- read and write any block of data from MIFARE tag
- set authorization credential for every Mifare tag blocks for write and read
- control user action (LED, Buzzer)
- control result of operation
7.1
Mifare tag structure
Below is Mifare 1k tag structure (note from NXP Semiconductor MF1S503x pdf):
Tag has 1kB EEPROM memory.
Memory is organized as 16-bytes block.
At one time tag can read or write exactly 16 bytes. So if user want to write 2 bytes to
block without erase other, it is necessary to read 16 bytes, change 2 bytes and write 16
bytes.
User manual RFID IND Modbus Mif
Page
13
z
22
[B03]
