The RFID Standard is a flexible, freely configurable system. With the help of commands the reading/writing unit can be programmed via an external control (PLC or industrial PC) with USB or RS232 connection according to one’s own needs. The user can freely define the data structure on the transponder and evaluate it via the external control according to the requirements. Thanks to the flexible system, theoretically any number of transponders can be managed with RFID Standard. RFID Standard supports two operating modes: cyclic and single reading. Cyclic reading means that the presence of the transponder is permanently being checked at regular intervals. As long as the transponder is registered, the function activated with the transponder remains active. Single reading means that each new registration of a transponder is being evaluated and that the assigned action is being activated.