< 4-channel
< Inputs Ex ia, Outputs Ex ia
< Analog input, digital input,
analog output, digital output
< Mounting in Zone 2, Class I/Div.2 or in the safe area
< Supply circuit 15 V (20 mA)
< HART communication via field bus or service bus
< Simulation mode for service operations (forcing)
< Line fault detection (LFD): one LED per channel
< Permanently self-monitoring
< Module can be exchanged under voltage