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Consider the General Notes on the Information in the Pepperl+Fuchs Product Catalogs
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Copyright Pepperl+Fuchs
16.08.12
Identification Systems
Serial
block then offers another 100,000 write cycles. With this procedure,
type IPC03 read/write tags allow at least 2,900,000 write cycles if all
the memory bank blocks are used
sequentially.
The IPC12-58-64K ferrite magnetic
FRAM tag offers an almost
unlimited number of write cycles
(10
12
).
IPC02 read-only tag
The IPC02-type read-only tags
have an internationally unique code
that is 40 bits long. They are one
of the most cost-effective RFID
solutions on the market and come
preprogrammed with a read only
code that cannot be changed.
Read/write tags with
"
make read-only code" function
Special IPC11-type read/write tags (one-time writable tags) can emulate
a read-only tag through the programming of a separate read-only code.
The freely programmable read-only code can be protected against
change and as a result the tag achieves read speeds that are just as
quick as a "real" read-only tag. In this way, the evaluation or assignment
of the read-only code can be made considerably easier in the PLC
program.
HF read/write heads and tags
Read/write heads at 13.56MHz arewell definedworldwide in accordance
with ISO and IEC standards.However, only the UID code can be securely
read by all standardized systems due to the manufacturer-specific
variations for chips and a certain level of freedom in the standards.
Due to the higher tag frequency, a lower number of receiver/transmitter
coil windings is required for tuning. The coil geometry can be stamped
out in a "meandering" pattern and can easily and cost-effectively be
incorporated with the silicon chip in a smart label. It can, for example,
be laminated in a credit card format. However, if requirements include a
high degree of protection, mechanically robust industrial design, or high
temperature applications, the price does not differ greatly from that of
other systems. Installation or mounting on metal is only possible if the
relevant spacers are fitted. It is not possible to align the field using ferrite
cores due to the low number of windings. A distance from the metal of
at least 15 mm should be used as a benchmark. This spacer is already
integrated in the housing design of some types. These considerations
must always be taken into account when programming 13.56 MHz
systems.
13.56
MHz tags typically have a 64-bit UID code as well as a data range
of variable size.
UHF read/write heads and tags
Read/write heads in the 865 to 928 MHz frequency range work with
electromagnetic waves in the far field. The tags can be either passive or
active (i.e., with battery) and have a specially shaped rod antenna as the
resonance element. The passive tags can be manufactured very cost-
effectively and reach detection ranges of up to a few meters. However,
UHF systems are very sensitive to humidity and metal in the read range.
Conductive objects in the direct surroundings can reflect waves and
interference can lead to reading gaps. It therefore makes sense to read
UHF tags during movement or at a tested location.
Due to the lower tag costs in particular, this system offers a cost-
effective alternative to microwave systems for material handling and the
automotive sector with required detection ranges of 1 to 5 meters. The
high tag frequency supports large data volumes and extremely short
read times.
Application Examples
8.7
RFID in several applications
For several applications using RFID go to
Grounding
screw
Fieldbus and diagnostic
connection
Robust IP67 metal housing
Integrated switch
(
Ethernet version)
Power supply
Connection R/W heads
LED indicator for
supply voltage
LED for bus communication /
diagnosis
LED for bus
communication / diagnosis
LED for R/W heads
Identification Sytems RFID
8
Identification Systems RFID,
Control Interfaces
8
.1
Identification Systems RFID,
Heads and Transponders
8
.2
Identification Systems RFID,
Handheld
8
.3
Identification Systems RFID,
Accessories
8
.4
