turck TBEN-S2-2RFID-4DXP - Command: Change EPC Length and Write New EPC (UHF)

Setting
RFID channels — overview of commands
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07.00 | 2022/09 | 120
8.8.5 Command: Change EPC length and write new EPC (UHF)
NOTE
The maximum EPC length of a tag depends on the chip type. Refer to the appropri-
ate data sheet for the length.
The Change EPC length and write new EPC (UHF) command causes the RFID module to auto-
matically adapt the length for the EPC response set in the tag (change of the PC in the tag) and
writes the EPC with this length to the tag. If a particular EPC is entered, the UHF reader only
writes the appropriate tags. All other tags in the detection range are ignored in this case.
See description of the output data, p. [}105].
Request
Loop counter See description of the output data
Command code 0x0007 (hex.), 7 (dec.)
Read/write head address See description of the output data
Length UID/EPC Reserved bytes in the write data for the EPC
0: Do not address the tag, read any tags in the air interface
Start address Not required
Length Length of the data to be written in bytes; must be even and
≤ 62
Timeout Not required
Write fragment No. See description of the output data
Read fragment No. 0
Write data, Byte 0…(length of
the UID/EPC - 1)
EPC of the tag to be written
Write data, Byte (length of the
UID/EPC )…127
New EPC with new length
See description of the input data, p. [}100].
Response
Loop counter See description of the input data
Response code 0x0007 (hex.), 7 (dec.)
Length 0
Error code See description of the input data
Tag in
detection range
See description of the input data
Data (bytes) available See description of the input data
Tag counter See description of the input data
Write fragment No. See description of the input data
Read fragment No. See description of the input data
Read data, bytes 0…127 Not required