turck TN-UHF AUS-CDS Series, Instructions For Use Manual

Page: 167 / 225

V02.00 | 2020/08
167
8.5.5 Command: Write and verify
The Write and verify command writes a number of bytes defined by the user. The written data
is also sent back to the interface and verified. 128 bytes are transferred by default in a write
operation. Larger data volumes can be transferred in fragments. The written data is only
verified in the interface and is not sent back to the controller. If the verification fails, an error
message is output. If the command is processed without an error message, the data was
verified successfully.
NOTE
„ With multi-tag applications enter the EPC of the tag to be written.
NOTE
The command code for fast processing with the loop counter is 0x2008 (hex.) or
8200 (dec.).
Request
Loop counter See description of the output data, [ } 156]
Command code 0x0008 (hex.), 8 (dec.)
Memory area See description of the output data, [ } 156]
Read/write head address See description of the output data, [
}
156]
Length of EPC Enter the EPC size in bytes if a particular tag is to be written.
The EPC must be defined in the write data (start byte: 0). The
function of the length of the EPC depends on the command
used.
0: No entry of an 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 written if an EPC is present in
the write data.
Start address Start address of the memory area on the tag to be written
(entry in bytes)
Length Length of the data to be written in bytes
Command timeout See description of the output data, [ } 156]
Write fragment no. 1: Use fragmentation
0: Do not use fragmentation
Read fragment no. 0
Write data, Byte 0…(size of the
UID/EPC – 1) Optional: UID or EPC of the tag to be written
Write data,
Byte (size of the EPC)…127 Write data