SI Unit YW (CANopen) Input Block Stations 63 [6 Stations/M8: 4 Inputs (3 Pins)] Input Block COM N (-COM) Stations 16 Stations SUP/EXH Block Mounting B (Both Sides 2~20 Stations) Pilot S (Internal Pilot, Built-in Silencer) A, B Port C6 (6 One-touch Fitting) Mounting Method None