Tag Fundamentals - Omron V740-BA50C22A-US Operation Manual

1.6 Tag Fundamentals

Tag Memory Structure
Protocols and the tag memory structures supported by
the V740 reader are described below. For additional
information regarding tag operation, refer to each tag
specification.
Class 1 Tags
Class 1 tags contain 96 bits of programmable memory.
It consists of EPC Code, Check Code data. 64 bits of
them are EPC Code, and the first 16 bits of them are
Check Code for the EPC Code.
Byte Bit
1 0-7
2 8-15
3 16-23
4 24-31
5 32-39
6 40-47
7 48-55
8 56-63
9 64-71
10 72-79
Class 1B Tags
Class 1B tags contain 128 bits of programmable
memory. The format is almost the same as the Class
1 tags. Bit count of EPC code is 96.
Byte Bit
1 0-7
2 8-15
3 16-23
4 24-31
5 32-39
6 40-47
7 48-55
8 56-63
9 64-71
10 72-79
11 80-87
12 88-95
13 96-103
14 104-111
V740 RFID READER/WRITER, ANTENNA
OPERATION MANUAL
Contents
Check Code (CRC)
EPC Code
8bytes (64bits)
Contents
Check Code (CRC)
EPC Code
12bytes (96bits)
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2005-09, REV0.1
©OMRON CORPORATION 2005