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Procedure of Tag Locking & Killing

Overview about UHF Tag Locking, Killing and Password handling
Related Products
RFU62x
RFU63x
RFU65x
RFU610-106xx PoE

Table of Contents

ISO-18000-63 or EPC Class-1 Gen-2 compliant UHF transponders provide the possibility to secure the contents within the tag memory via tag locking. Also to disable tag after its intended usage, this could be done via tag killing. Tag locking or killing requires the usage of passwords that resides within the Reserved Memory bank (Bank 00).

Table of memory access possibility based on locking state

With the matching access password used in the RFU6xx, the user is allowed to perform actions on the memory content depending on the current locking state of the memory . The table below provides an overview of the possibilities:

Locking/unlocking a tag using SOPAS-ET

Read one transponder from Quickstart then with the Transponder Access. In the Tag Access page, the password management and tag locking options are initially hidden at the top.


Step 1: Set Tag access password (8 Hex characters) within Tag Access page

 

Step 2: Set matching Device access password on Transponder Processing page (optional: accessible via link button)

 

Step 3: Execute locking action on the respective memory banks and/or passwords in Tag Access page (optional: accessible via link button)


Hint:

The Tag access password should be protected from unauthorized reading by temporary/permanently locked.

Locking/unlocking a tag using SOPAS commands

Step 1: Set transponder access password (8 Hex characters) using write command
sMN TAextWriteTagData 1 +28 3000111122223333444455556666 0 2 2 32 8 12345678 1

Step 2: Set matching device access password using command
sMN TAusePasswd 1 12345678

Step 3: Lock memory banks
The following table describes the parameter for the locking actions. 


Example:
Lock UII, tag access password and tag kill password permanently
sMN TAextLockTagData 1 +28 3000111122223333444455556666 32 5 FC3F0 1

Lock user memory temporary
sMN TAextLockTagData +28 3000111122223333444455556666 32 3 802 1

Killing a tag using SOPAS-ET

Read one transponder from Quickstart then with the Transponder Access. In the Tag Access page, the password management and tag locking options are initially hidden at the top.


Step 1: Set Tag kill password (8 Hex characters) within Tag Access page


Step 2: Set matching Device kill password on Transponder Processing page (optional: accessible via link button)


Step 3: Execute kill action in Tag Access page (optional: accessible via link button)


Hint:

The access password for tag and device should be matching to write the kill password. Kill action only possible with a non-zero tag kill password.
Also, if a tag kill password is set, it should be protected from unauthorized reading by temporary/permanently locked.

Killing a tag using SOPAS commands

The principle of the kill tag function is equal as the locking. 

Example with kill password "87654321"

Step 1: Set the transponder kill password
sMN TAextWriteTagData 1 +28 3000111122223333444455556666 0 0 32 8 87654321 1

Step 2:  Set matching device kill password using command
sMN TAusePasswd 0 87654321

Step 3: Kill tag
sMN TAkillTagData 1 +28 3000111122223333444455556666 32 1

Keywords:
Tag Locking, Tag Killing, Tag access password, Tag kill password, kill, lock, transponder, UHF, RFU, RFU6, RFU6xx