This I/O system field is designed to meet the requirements of decentralized production facilities, providing high-level connectivity. This system is IP67-rated and offers two types of housings: cast zinc with encapsulated electronics for harsh environments and nonencapsulated plastic housings with low mass for mobile applications such as robots. Both types of modules are equipped with innovative load management. Current and voltage levels can be recorded and evaluated, and overload limits and alarms can be set for each channel, providing system reliability. The cast zinc housing devices have input and output power ports for use with daisy-chained modules and are Profinet-based.