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Transmission Methods
D1 – D4
data bytes to be transmitted (payload)
A5
end code
Ping
5A 5F A5
5A
start code
5F
ping code
A5
end code
Response to Ping
5A 5F A5
5A
start code
5F
ping response code
A5
end code
Port
The communication takes place via the TCP port 4007 as in case of Generation 2 readers.
Example
The frame
ASyncGetEPCs
is shown here as an example. The ID for this command is
0x0111
, which makes the frame look as
follows:
0x5A 0x50 0x02 0x00 0x00 0x00 0x11 0x01 0xA5
Extended Block Structure
If a data block to be transmitted exceeds 16 kB, it is necessary to subdivide into several 16-kB blocks. These blocks
receive a block number, and the first block contains the total data length. It is necessary to confirm the reception of
each block by means of an answer.
First block:
Start + block number always 0 + 4-byte total data data block + end
All other blocks:
Start + block data block + end
Answer to confirm the reception:
Start + block end
The start consists of
0xAA 0xBB 0x0E 0x01
. The end consists of
0xAA 0xCC
. If the
0xAA
occurs in the KBRP frame, it is necessary
to double it:
0xAA
ൺ
0xAA 0xAA
.
Summary of Contents for ARU4 Series
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