| 摘要 |
A method for implementing and operating, and a read/write unit for use in, a system that includes multiple contactlessly readable transponders each in having a unique identification number. The read/write unit is connected to an industrial control device of the system and, in a recognition phase, a first of the transponders is detected by the read/write unit. At the start of a holding phase, the identification number of the detected first transponder is stored in a holding register of the read/write unit. Then, during the holding phase, other detected transponders are ignored by the read/write unit. The identification number of the first of the detected transponders is thereafter deleted from the holding register to terminate the holding phase so that it is possible to communicate reliably with a unique transponder even over a relatively long time period without process disturbances arising from the presence of other transponders in the area of the read/write unit.
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