Hello learners welcome to this topic on SCADA functions and specifications. The following SCADA functions are envisaged under this specification. Data accusations from remote terminal units at substation feel The remote terminal units at ring main units are section lasers and fault passage indicators. Time synchronization of RTUs and FRTUs if time synchronization is supported in data exchange is required among the following system. Vendor supplied SCADA and DMS, IT system established by the utilities under RAPDRP scheme. State load dispatch center department and the data exchange should be comfortable with the existing systems and IUC61968-1 Enterprise. Data processing, continuous real time data storage and playback sequence of event processing, supervisory control, failsoft capability, remote database downloading, diagnostics and configuration. CIM complaince IEC61968, GIS adapter that is GIS land based data network model using GIS engines and adapters. Supporting native adaptive CIM or XML model for distribution or power system using model exchange and data exchange over IEC61968-1 enterprise SOA based BUS. Information storage and retrieval, data recovery. The following details must be the part of this SCADA DMS function specification. The power system sizing, performance requirements for complete SCADA DMS. The SCADA system shall have the capability to accept data from the following sources, telemetered data received from RTUs, FRTUs and FPIs. Data received from IT system established under R-APDRP, calculated data, manually entered data, GIS land based data, network model using GIS engines, SCADA functions and specifications. The capability of all input data collected are entered by the user, checking and then accepting the reasonable ones, rejecting unreasonable ones is to be there. Capability assesses intermediate results and the final results before being displayed to the user. In case results are unreasonable, such data must be prevented without propagating or displaying. As and when unrealistic data are found, your message about the problem needs to be generated and displayed to the user. The benefits and disadvantages of a SCADA system are, reduces the maintenance cost, improves efficiency of system management, ensures more environmental protection, alarm handling. Our central processing of alarms, reduces manpower requirements, maximizes equipment lifetime. Minimises fault response time, increases throughput limits frequency of accidents, improve the quality of service, improved reliability, reduced operating cost, maintenance and the expansion of customer base is possible. Improve information for engineering decision, improved customer information access. And let us lead the drawbacks of SCADA, challenges in integrating, managing and debugging wireless instrumentation network with other communication infrastructure, security. Concern about virus attacks through the internet, vulnerable to unearth, raise the user access that is hacking that could lead to disastrous outcomes like explosions. Possibility of data interception, alteration, retransmission, increase the traffic on network. With this we come to the end of this topic thank you.