Specifications

Serial port intercommunication agreement | VI-88TR development handbook
Function: to write data into the appointed address unit of appointed tag.
Data length to write takes byte as unit, and 4bytes can be written in at most
once. Writable byte address for user is 8～223.
Command code: F5H
Command parameter: 8 bytes ID(subject to the sequence of tag ID
number); 1byte start address(aa), value 8~223; 1byte length of block(nn),
value 1~4; nn bytes written data.
Command packet: 『40H 12+nn F5H id aa nn xx --- xx
CheckSum』
Return packet: if success, return data is null.
『F0H 02H F5H 19H』
Command format with reader address:
Command code: F5H
Parameter of reader address: address
Command parameter: 8 bytes ID(subject to the sequence of tag ID
number); 1byte start address(aa), value 8~223; 1byte length of block(nn),
value 1~4; nn bytes written data.
Command packet: 『40H 13+nn F5H address id aa nn xx ---
xx CheckSum』
Return packet: if success, return data is null.
『F0H 03H F5H address CheckSum』
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