Abstract: A gate array includes at least two access control gates and a monitoring system with at least a first sensor equipment at least configured to detect a user in a first access area of the first access control gate and to detect a user in a second access area of the second access control gate. At least one detection device detects an assignment error state at least if, upon a detection of the ticket medium by a first reader module of the first access control gate, a user is detected at least almost simultaneously by the first sensor equipment only in the second access area. At least one control device is configured to initiate at least one assignment error action upon a detection of the assignment error state.

Abstract: A sensor for measuring at least one measurement variable, a sensor network which has several sensors and a method for operating the sensor network. The sensor initially has a measurement variable sensor which is used to convert the measurement variable into an electric signal. A transducer is used to convert the electric signal into measurement data. The sensor has a first communication interface for transferring the measurement data and other data in accordance with a first protocol and a second communication interface for transferring the measurement data and other data in accordance with a second protocol. The sensor also has a data exchange unit for exchanging data between the transducer, the first communication interface and the second communication interface.

Abstract: A sensor for measuring at least one measurement variable, a sensor network which has several sensors and a method for operating the sensor network. The sensor initially has a measurement variable sensor which is used to convert the measurement variable into an electric signal. A transducer is used to convert the electric signal into measurement data. The sensor has a first communication interface for transferring the measurement data and other data in accordance with a first protocol and a second communication interface for transferring the measurement data and other data in accordance with a second protocol. The sensor also has a data exchange unit for exchanging data between the transducer, the first communication interface and the second communication interface.

Abstract: A sensor for measuring at least one measurement variable, which has a configurable measurement variable sensor that converts the measurement variable into measurement data. An arrangement for operating a sensor, which has a configurable measurement variable sensor. A method for operating a sensor which has a configurable measurement variable sensor. The sensor can be a vibration sensor for measuring mechanical vibrations and has a configurable measurement variable sensor for converting the measurement variables into measurement data and a processor. The sensor has an interface with multiple functions. The interface is used initially for transferring coded measurement data so that the measurement data can be read from the sensor. The interface is also used in the transfer of configuration data for the configuration of the measurement variable sensor and for transferring a supply voltage for the electric supply of the sensor. The sensor can be fully operated by the individual interface.