SCADA. This configuration offers maximum performance because of the direct access to the SCADA database without requiring any intervening buffering. This approach may not be available as an addition to a legacy system. The ICCP application may be restricted to accessing only the SCADA environment in which it is embedded. A networked server making use of industry standard communications networking to the SCADA host may provide performance approaching that of an embedded ICCP application. On the application interface side the ICCP is not restricted to the SCADA environment but is open to other systems such as a separate data historian or other databases. Security may be easier to manage with the ICCP server segregated from the operational real time systems. The gateway processor approach is similar to the networked server except it is intended for legacy systems with minimal communications networking capability and so has the lowest performance. In the most minimal situation the ICCP gateway may communicate with the SCADA host via a serial port in a similar manner to the SCADA RTUs. See also IEC 60870-5 IEC 61850 References External links ICCP Open ICCP Computer security standards IEC 60870 de:IEC 60870-6