Siemens 6AV3688-3AF37-0AX0 HMI KP8F PN is a SIMATIC HMI key panel with eight short-stroke keys that feature multi-colored LEDs for clear, at-a-glance feedback. It provides PROFINET connectivity with PROFIsafe and includes eight digital inputs/outputs plus two safety DI pins, enabling integrated operator control and safety signaling in a compact, panel-mounted unit. The device is powered from 24 V DC with loop-through capability and is parameterizable via STEP 7 V5.5, aligning with common Siemens automation architectures.
