BECKHOFF DK9322-1109-0011 - Manual

TwinCAT
TwinCAT Supplement ‚RFID Reader Communication‘
Application Note DK9322-1109-0011
Keywords
RFID
TwinCAT
Supplement
Reader
Middleware
Serial interface
PLC
TwinCAT RFID Library
The ‘TwinCAT PLC RFID Reader Communication’ supplement is a middleware for connecting RFID readers
by different manufacturers to TwinCAT PLC via an abstract interface. Communication between the reader
and TwinCAT PLC takes place via the serial interfaces EL60xx (Beckhoff EtherCAT Terminal system) and
KL60x1 (Beckhoff Bus Terminal system) or also via the COM port of the PC, so that automated detection of
the presence of tags can be used extending as far as write accesses to the production controller and other
applications.
Basic principles and advantages of RFID
RFID (radio frequency identification) is a contactless identification system for objects that is used in the manufacturing or
logistics controller in order to initiate further sequences and steps via presence detection. An RFID system consists of several
transponders (tags), a reader and software that evaluates the data from the tags. A tag contains an ID, which does not change
over the entire lifetime, and a memory in which data can be stored. In addition to presence detection, the memory can be
used to read or write further data. The size and writability of the memory (Write-once-Read-Only/Read-Write) of the tags are
manufacturer-specific.
New Automation Technology Beckhoff 1
For application notes see disclaimer on the last page