Omron V780-Series User Manual page 171

LOCK
Function
This command locks or unlocks the memory of the RF Tag in the communications range.
Precautions for Correct Use
• When an RF Tag is locked, the specified password is written to the access password area in
the RF Tag.
• If an RF Tag address error, RF Tag lock error, or RF tag system error occurs when locking an
RF Tag, the access password area in the RF Tag will be cleared to all zeros.
• When an RF Tag is unlocked, the access password area in the RF Tag will be cleared to all
zeros.
Command Area
Signal/data
CmdCode/Command Code
CmdParam1/Command Parameter 1
CmdParam2/Command Parameter 2
Reserved/Reserved Area
Cnt Response/Update Counter
Response
CmdData/Command Data
Password
*1. When you unlock an area, specify all of the areas that have been locked.
*2. If you specify the EPC, TID, or user area, you will no longer be able to write data to that area.
*3. If you specify the access password, you will no longer be able to read the access password area.
UHF RFID System V780-series Reader/Writer User's Manual (EtherNet/IP
Data type Size
WORD 2 bytes 0005 hex
WORD 2 bytes Lock operation: Specifies locking or unlocking.
0000 hex: Unlock
0001 hex: Lock
* Specify one or more of the EPC area, TID
WORD 2 bytes Area to lock/unlock: Specifies one or more of
the EPC, TID, and user areas as the area to
lock or unlock.
Bit 0: EPC area
Bit 1: TID area
Bit 2: User area
Bit 3: Access password
Bits 4 to 15: Reserved (Always 0)
* If all zeros is specified, a command param-
WORD 2 bytes 0000 hex (Not used.)
WORD 2 bytes 0000 hex (At command execution)
The value is counted up due to a change in
the update counter.
For details, refer to Update Counter/Update
Counter Response on page 7-10.
ARRAY [] 4 bytes Specifies the access password to set in the
Tag in 8-digit hexadecimal (32 bits)
OF BYTE
(00000000 hex).
Locking: The access password to set in the
RF Tag to lock.
Unlocking: The access password in the RF
Tag to unlock.
TM
) (Z402)
7 Ethernet/IP Communications
Function
*1
*2, *3
area, user area, and access password.
eter error will occur.
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