turck TBEN-L4-4RFID-8DXP, Инструкция по эксплуатации

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Setting
RFID channels – overview of commands
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8.8.3 Read command
The Read command causes the read/write head to read the data of tags in the detection range.
128 bytes are transferred in a read operation by default. Larger data volumes can be transferred
in fragments. If a particular UID or EPC is entered, the read/write head only reads the appropri-
ate tags. All other tags in the detection range are ignored in this case.
NOTE
The command code for fast processing with the loop counter is 0x2002 (hex.) or
8194 (dec.).
Request
Loop counter See description of the output data, [
}
99]
Command code 0x0002 (hex.), 2 (dec.)
Memory area See description of the output data, [ } 99]
Read/write head address See description of the output data, [
}
99]
Length UID/EPC Enter UID or EPC size in bytes, if a particular tag is to be read.
The UID or EPC must be defined in the write data. (start byte:
0). The function of the length of the UID/EPC depends on
the command used.
0: No entry of a UID/EPC for executing the command. Only
one tag can be located in the detection range of the read/
write head.
> 0: EPC length of the tag to be read if an EPC is present in
the write data
-1: NEXT mode: A tag is always only read if the UID/EPC is
different to the UID/EPC of the last read or written tag.
Start address Start address of the memory area on the tag to be read
(entry in bytes)
Length Length of the data to be read in bytes
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…(size of the UID/EPC-1) UID or EPC of the tag to be read
Write data,
Byte (size of the EPC)…127 Not required
Response
Loop counter See description of the input data, [
}
93]
Response code 0x0002 (hex.), 2 (dec.)
Length Length of the read data
Error code See description of the input data, [ } 93]
Tag within the
detection range See description of the input data, [
}
93]
Data (bytes) available Increases during command execution
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, Bytes 0…n Read data