Specifications

Table Of Contents
Serial port intercommunication agreement | VI-88TR development handbook
3 User
Command parameter4: 1byte addr, start address(unit:Word).
Command parameter5: 1byte len, length of data(unit:Word).
Command parameter6: 4bytes, AccessPassword.
Command packet: 40H 10+L*2 ECH L EPC mem addr len
AccessPassword CheckSum
Return packet: if success, return data is len*2bytes data xx.
F0H len*2+2 ECH xx …… xx CheckSum
Note: AccessPassword is workable when password memory bank is
locked.
Command format with reader address:
Command code: ECH
Parameter of reader address:address
Command parameter1: 1byte L, digit count of EPC, to show the word count
of EPC number.
Command parameter2: L*2bytes EPC number, to show which tag data to
read.
Command parameter3: 1byte mem, select memory bank.
0
Password
1 EPC
2 TID
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