![background image](http://html1.mh-extra.com/html/omron/v780-series/v780-series_user-manual_743948182.webp)
7 Modbus/TCP Communications
7 - 30
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
Function
This command locks or unlocks the memory of the RF Tag in the communications range.
Command Format
Note 1. When an area is locked, the specified password is written to the access password area in the RF Tag.
2. If an address error, lock error, or RF Tag system error occurs when locking an area, the access pass-
word area in the RF Tag will be cleared to all zeros.
3. When an RF Tag is unlocked, the access password area in the RF Tag will be cleared to all zeros.
Response Formats
• Normal Response
LOCK
Byte-0
Byte-1
Byte-2
Byte-3
Byte-4
Byte-5
Byte-6
Byte-7
Byte-8
Byte-9
Byte-10
Byte-11
Transaction identi-
fier
Protocol identifier
Field length
Unit
identifier
Function
code
Register address
Word count
X
X
0000 hex
000F hex
FF hex
10 hex
8000F hex
0004 hex
Byte-12
Byte-13
Byte-14
Byte-15
Byte-16
Byte-17
…
Byte-20
Byte
count
Lock operation
Area to lock/unlock
Password
08 hex
2 bytes
2 bytes
4 bytes
Parameter
Description
Lock operation
Specify locking or unlocking.
0000 hex:
Unlock
0001 hex:
Lock
• If you specify locking the UII (EPC), TID, or user area, you will no longer be able to write
data to that area.
• If you specify locking the access password, you will no longer be able to read the access
password area.
• When you unlock an area, specify all of the areas that have been locked.
Area to
lock/unlock
Specify one or more of the UII (EPC), TID, and user areas.
UII (EPC) area: 0001 hex
TID area: 0002 hex
User area: 0004 hex
Access password: 0008 hex
• If all zeros is specified, a command parameter error will occur.
Password
Specify the access password to set in the Tag in 8-digit hexadecimal (32 bits) (00000000 hex).
Locking: The access password to set in the RF Tag to lock.
Unlocking: The access password in the RF Tag to unlock.
Byte-0
Byte-1
Byte-2
Byte-3
Byte-4
Byte-5
Byte-6
Byte-7
Byte-8
Byte-9
Byte-10 Byte-11
Transaction identi-
fier
Protocol identifier
Field length
Unit
identifier
Function
code
Register address
Word count
X
X
0000 hex
0006 hex
FF hex
10 hex
2 bytes
2 bytes
Parameter
Description
Register address
The register address from the command is set
Word count
The word count from the command is set.
Summary of Contents for V780 Series
Page 22: ...Version Upgrade Information 20 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 60: ...3 Part Names and Functions 3 14 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 152: ...6 Functions 6 76 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 334: ...8 Browser Interface 8 44 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 358: ...9 Troubleshooting 9 24 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 392: ...Appendices A 30 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 393: ...I 1 I UHF RFID System V780 series Reader Writer User s Manual Z389 Index ...
Page 397: ......