User's Manual

December 6, 2006 Proprietary Information 63
Revision 1.0
4.7.6 LOCK Sub-Command
The LOCK sub-command prevents further modification of the
EPC ID and the Kill password stored on a tag. The LOCK sub-
command contains the following message format:
Figure 49 LOCK Sub-Command Message Format
Table 46 LOCK Sub-Command Field Definitions
Field Definition
Q Value Q Value for interrogation session with tags
Tag ID Bit Count This field holds the number of bits in the tag id
TAG_ID This is the ID of the tag to be locked
MSB LSB
Message
Command Parameters
Sub-
Command Parameters
0x04 0x03 Q value
Tag ID Bit
Count
Tag ID
1 byte 1 byte 1 byte 1 byte 32 bytes 92 bytes