Locking EPC Memory Bank on UHF Gen2 tags Without Encoding
This page will cover how to use LineLogixPC software to
lock EPC memory without encoding EPC for standard UHF Gen2
tags (for details on locking UCODE 9 tags, see here).
These instructions work best with LineLogixPC Version 4.330 07Nov2023 or later.
Some features work on earlier software, but all features described here were tested on that revision.
Standard Generation-2 UHF RFID Tags contain four memory banks:
- Reserved bank for storing access and kill passwords
- EPC (electronic product code)
- Non-programmable TID (unique serial number)
- User data
Memory Map from: EPC™
Radio-Frequency Identity Protocols Generation-2 UHF RFID
Standard, © 2018 GS1 AISBL
Default factory configurations set all passwords null, and all
data readable and writable (unlocked), with the exception of
non-programmable TID value. Users may change data
accessibility/security by writing passwords
and setting memory banks' security to any combination of the following Lock configurations:
Note: Lock and kill commands require non-zero
access and kill passwords.
- Temporary lock
- Permanent lock
- Temporary unlock
- Permanent unlock
In LineLogixPC, create a WriteBlockData test job for UHF Gen2
tags and select Password and Lock as
Open the Parameters dialog and set a non-zero Access Password.
In Lock Parameters, set Access and EPC Lock Parameters
to Temp. Lock:
Start job. EPC bank and Access password
will now be locked; EPC data is still readable but writing new
data will require the correct access password.