1. Hard protection of words
LF - EN
Hard protection of words
Hard protection of words
J.-D. Chatelain

2. It is not possible to remove a
LF - EN
Hard protection of words
Hard protection of words
WARNING
It is not possible to remove a
hard protection!
Write protection
Read protection
One memory word
Contrinex
RFID systems
RFID systems
Contrinex
RFID systems
RFID systems
Contrinex
Contrinex
Contrinex 1 1 1
Without protection: it is possible to read the word and to overwrite it
With a read protection, it is not possible to read the word but it is possible to overwrite it
With a write protection, it is possible to read the word but it is not possible to overwrite it
With a read and write protection, it is neither possible to read the word nor to overwrite it
Code 00
Code 02
Code 04
Code 06

3. 00: no protection
02: read protection 04: write protection 06: read and write protection

4. Result of reading a zone containing protected words.
Words at addresses 61 to 63, with protection code 2, have a hard protection against reading. The result of reading is always <FFFF>.
Words at addresses 64 and 65, with protection code 4, has a hard protection against writing. It is not possible to overwrite this word, but it is still possible to read it.

5. Hard protection of words End of this chapter
LF - EN
Hard protection of words
Hard protection of words
End of this chapter
J.-D. Chatelain