The IO-Link programming tool for RFC-4800 series touchless angle sensors connects a sensor to a mini USB port of a PC running Windows or newer operating system. IO-Link enables users to program, test and adjust custom offset values to null point and set direction of rotation as clockwise or counterclockwise. It reads an error signal if the magnet, the touchless RFC-4800 it is connected to, is absent or outside the sensor’s operating range by being too close or far from the sensor. It also reports the sensor’s functional status.