turck TBEN-L4-4RFID-8DXP, Instructions For Use Manual, Page: 136 / 242

Setting
RFID channels – overview of commands
136
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8.8.17 Command: Set read/write head password
NOTE
The command is only available for applications with UHF tags and the HF tags
TW-R…-M-B146.
The Set read/write head password command directly sets a password for write access, read
access or a Kill command. The password is stored temporarily in the memory of the read/write
head. After the voltage of the read/write head is reset, the password must be set again in the
read/write head. With UHF applications, the password is stored in the memory of the interface.
The password stored in the read/write head is automatically sent with a
Write command, a
Read command or a Kill command so that the command can be carried out on a protected tag.
The password function is only available in HF applications in single-tag mode. An error message
is output with multitag applications. For troubleshooting set the
HF: multitag mode parameter
to 0 : Multitag mode off .
Request
Loop counter See description of the output data, [
}
99]
Command code 0x0100 (hex.), 256 (dec.)
Read/write head address See description of the output data, [ } 99]
Length UID/EPC Not required
Start address Not required
Length Not required
Command timeout See description of the output data, [
}
99]
Write fragment no. 0
Read fragment no. See description of the output data, [ } 99]
Write data, Byte 0...3 Password: ARRAY [0…3] OF BYTE
Write data, Byte 4...127 Not required
Response
Loop counter See description of the input data, [ } 93]
Response code 0x0100 (hex.), 256 (dec.)
Length Not required
Error code See description of the input data, [ } 93]
Tag within the
detection range See description of the input data, [ } 93]
Data (bytes) available See description of the input data, [
}
93]
Tag counter See description of the input data, [ } 93]
Write fragment no. 0
Read fragment no. See description of the input data, [
}
93]
Read data Not required