Turck introduced an intrinsically safe Profibus-DP gateway for its zone 1 remote I/O system, excom. At the core of the GDP-IS is a new microcontroller. The dissipation loss is lower, because the power consumption is 1W at maximum. It offers additional status information and special excom error codes, such as for power supply, projection and HART communication errors. The gateway to gateway communication that is needed for redundancy operation takes place over a separate interface. For communication with the modules, the gateway provides two full-fledged controllers. excom is a remote I/O system for use in hazardous areas. It offers IP20 rated bus compatible, local in/output modules to connect binary and analog field devices.