Siemens SIMATIC Ident System Manual page 285

Transponder
An invented word from transmitter and responder. Transponders are used on the product,
the product carrier, the object, or its transport or packaging unit, and contain production and
manufacturing data, i.e. all application-specific data. They follow the product through
assembly lines, transfer and production lines and are used to control material flow.
Because of their wireless design, transponders can be used, if necessary, at individual work
locations or manufacturing stations, where their data can be read and updated.
Transponders consist predominantly of logic, FRAM and/or EEPROM.
If a transponder moves into the transmission window of the reader, the necessary power for
all of the circuit components is generated and monitored by the power supply unit. The
pulse-coded information is prepared in such a way that it can be processed further as pure
digital signals. The handling of data, including check routines, is performed by the logic,
which also manages the various memories.
SIMATIC RF200
System Manual, 09/2013, J31069-D0227-U001-A8-7618
Glossary
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