Balluff BIS U Basishandbuch Seite 47

BIS U Basic Manual
7
Component Properties and System Characteristics
In order to make the selection of system components easier and ensure that they perform the
relevant tasks in the application correctly, this section discusses some of the basic properties
and characteristics of UHF components.
7.1 Memory Topology The memory for a "typical" UHF data carrier is divided up as follows:
of the Data
Carrier
7.2 Structure of the EPC codes were introduced to provide a migration path for the transition from barcodes to RFID
EPC Code technology. The data structure of the 96-bit EPC code is standardized in accordance with
EPCglobal and the GS1 convention as follows.
Figure 8:
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96 bits EPC read/write memory (can be expanded to another size, e.g. 448 bits).
512 bits Freely accessible read/write memory area for customer-specific
applications.
32 bits + 64 bits TID - Fixed unique product and serial number
32 bits
Access password
32 bits
Kill password for destroying the transponder (not supported by BIS U)
ELECTRONIC PRODUCT CODE
0 1 . 0 0 0 0 A 8 9 . 0 0 0 1 6 F. 0 0 0 1 6 9 D C 0
Header EPC Manager
0-7 bit 8-35 bit
EPC code
Header bit positions
(0...7)
EPC manager bit positions
(8...35)
Object class bit positions
(36...59)
Serial number bit positions
(60...95)
Object Class
36-59 bit
Represents the length of the EPC code, possible lengths
from 64 to 256 bits, 01 length 96 bits
Describes the product manufacturer
Describes the product (stock keeping unit)
Used to distinguish between 2
Serial Number
60-95 bit
individuals
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