The SCD5200 model from Foxboro unites functions and advantages of the RTU50 series from Foxboro at higher level of communications, integration and technical configuration. The modern graphic interface of the user is equipped with reliable tools of diagnostics at simultaneous preservation of independence of a platform of these means. Updating and expansion of tools of a configuration for increase of efficiency of engineering works, maintenance of system and management of a configuration is similarly carried out. Key feature of SCD5200 is integration of a CCP, the OptoNet technologies, the power supply unit and two ports Ethernet within a payment of the central processor (COPE). It creates the uniform compact module for specialized communications, creation of a local network and appendices. The distributed architecture allows to use all range of opportunities: from configurations of stations of small separate devices to redundant power supplies, processors and systems of input-output with redundant (duplicated and branched out) communication networks.