< Interface between the I/O modules and the PCS/PLC

< Com unit for 80 analog or 184 digital channels

< Communication via PROFIBUS DP

< Mounting in Zone 2, Class I/Div.2 or in the safe area

< HART communication via PROFIBUS DP V1 or service bus

< Configuration via GSD parameters from the control system

< Non-volatile memory for configuration and parameter settings

< Self configuration in redundant systems

< Permanently self-monitoring

< Outputs drive to safe state in case of failures