The photoelectric WCS position encoding system is rugged and perfect for harsh conditions, even in outdoor areas. It consists of a metal or plastic code rail combined with photoelectric sensors for scanning. With code rail lengths of up to 629 m, the position encoding system is suitable for long distances. Even when there are curves, declines, dips, and lane changes, the WCS reliably detects the exact position. Pepperl+Fuchs offers a special outdoor version for use in areas such as ports. For safety applications, Pepperl+Fuchs combines the advantages of the WCS positioning system with a safe evaluation unit. The system consisting of the safe evaluation unit (Position Unit Safe, PUS) and two safeWCS/PUS read heads enables safe position and speed detection up to SIL 3 and PL e.