IO-Link digital signals

Analog signals are traditionally used for process control but have serveral drawbacks. Sensing element provides an analog signal.

Analog signal is converted to digital to be processed by the sonsor
The signal must be converted back to analog to be transmitted to the control system over shielded cable to prevent external influences.

IO-Link communication transmits the data digitally for reliable process control. Sensing element signal is converted only once and transmitted digitally over standard cable to the IO-Link Master and then to the process controller.