Specifications

Serial port intercommunication agreement | VI-88TR development handbook
Function: to read a block of data starting from appointed address of
appointed tag. Memory capacity of ISO18000-6B tag is 2048bits(256bytes).
Readable byte address for user is 0～223. Length of data block takes byte as
unit. Stipulates 32bytes can be read at most each time.
Command code: F6H
Command parameter: 8bytes ID(subject to the sequence of tag ID number);
1byte start address(aa), value 0~223; 1byte length of block(nn), value
1~32.
Command packet: 『40H 0CH F6H id aa nn CheckSum』
Return packet: if success, return data is nn bytes of data.
『F0H nn+2 F6H xx …… xx CheckSum』
Command format with reader address:
Command code: F6H
Parameter of reader address:address
Command parameter: 8 bytes ID(subject to the sequence of tag ID
number); 1byte start address(aa), value 0~223; 1byte length of block(nn),
value 1~32.
Command packet: 『40H 0DH F6H address id aa nn CheckSum』
Return packet: if success, return data is nn bytes of data.
『F0H nn+3 F6H address xx …… xx CheckSum』
2.3.1.5 Write Byte Block
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