ACG HF Multi ISO RFID Reader - RFID Webshop
ACG HF Multi ISO RFID Reader - RFID Webshop
ACG HF Multi ISO RFID Reader - RFID Webshop
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<strong>ACG</strong> <strong>HF</strong> <strong>Multi</strong> <strong>ISO</strong> <strong>RFID</strong> <strong>Reader</strong> V1.0<br />
12.2.1 STX<br />
Start of transmission (02h)<br />
12.2.2 Station ID<br />
Unique ID of the station<br />
00h: reserved for the bus master. <strong>Reader</strong>s send response to this device ID.<br />
FFh: Broadcast message. All devices will execute the command and send their<br />
response.<br />
12.2.3 Length<br />
Length defines the length of the data block, including the flag byte, if binary protocol<br />
version 2 is activated.<br />
If length is set to zero, 256 data bytes are transmitted. The reader module only can<br />
send 256 data bytes, but cannot receive commands with 256 bytes.<br />
12.2.4 Flags<br />
The flag byte gives additional information to the host.<br />
Bit 3 Bit 7 Bit 1 Bit 2 Bit 0<br />
RFU Leading Character Info Error State<br />
Error State<br />
If cleared, the command was processed successfully.<br />
If Error State is set, an error occurred.<br />
Leading Character Info<br />
Bit 1 & 2 defines how to interpret the data in the binary frame.<br />
Bit 2 Bit 1 Description<br />
0 0 No leading character available, all values are hexadecimal.<br />
0 1 The data contains one leading character.<br />
1 0 All data bytes are characters.<br />
1 1 RFU<br />
12.2.5 Data<br />
This part contains the command and the data. The command values are the same as<br />
in ASCII protocol mode ( x , s , ) whereas data is transmitted in binary mode.<br />
The length of the command block depends on the instruction.<br />
<strong>ACG</strong> Identification Technologies GmbH 43
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