Intermec IF2 Basic Reader Interface Programmer's Reference Manual (BRI version - Page 119
Memory Bank 1 EPCID Memory
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Chapter 4 - BRI Commands Memory Bank 1 EPCID Memory For memory bank 1, if a non-zero ACCESS password has been written to a tag, you must specify an ACCESS password in the WRITE command in order to write to memory bank 1. Note that in memory bank 1, the data can always be read with a correct ACCESS password or without an ACCESS password. If the correct password is not given, the commands will return a PVERR indicating that an invalid password has been given. The example below illustrates writing the ACCESS password first, then performing the READ, WRITE, and PROTECT operations. WRITE HEX(0:4,4)=H11223344 WROK OK> READ EPCID H112233445566778899001122 OK> READ EPCID PASSWORD=H11223344 H112233445566778899001122 OK> WRITE EPCID=H00112234455667788990011 PASSWORD=H11223344 WROK OK> WRITE EPCID=H001122334455667788990011 PASSWORD=H55667788 PVER OK> PROTECT OFF HEX(1:4,12) PASSWORD=H11223344 LCKOK OK> PROTECT ON HEX(1:4,12) PASSWORD=H55667788 PVERR OK> Basic Reader Interface Programmer Reference Manual 107