Some manufacturers offer sensors with IO-Link communication. IO-Link is a global, standardized I/O communication offering point-to-point bidirectional communication. An IO-Link master is required to create an IO-Link environment for the sensor and transfer sensor data, alarms, events, and more onto a fieldbus (such as Ethernet IP or Profibus). When a sensor is connected to an IO-Link master, the master sends a wakeup request to the sensor which automatically switches the sensor into IO-Link mode. If the sensor does not receive a wakeup request, it will work in the default standard I/O mode or SIO. In standard I/O mode, the device works as a standard capacitive sensor. IO-Link provides unparalleled capabilities to access data and configure sensors. The user can program the sensor output, implement custom time delays, use logic functions, program alarms, and disable potentiometer or LED. This customization is possible because of IO-Link but the sensors can still be used with these adjustments in standard I/O mode. The benefit is for reduced inventory and immediate, flexible customization to the application using IO-Link sensors in standard I/O mode. If IO-Link masters are implemented in the future, these IO-Link sensors are ready to be used in IO-Link mode at any time.