Current Trends in Technology and Sciences Volume : 1, Issue : 1 (July-2012) Copyright © 2012 CTTS.IN, All right reserved 38 Implementation of Fully Automated Electricity for large Building Using SCADA Tool like LabVIEW Basil Hamed Electrical Engineering, Islamic University of Gaza, Gaza, Palestine. Email:bhamed@iugaza.edu Abstract — This paper deals with the development and implementation of a framework of SCADA using LabVIEW based Data Acquisition and Management. A SCADA system is described in terms of architecture, process interfaces, functionality, and application development facilities. The system is low on system requirements and easy to implement. This paper describes configuration of Remote Terminal Units to access and transmit real time data over the Intranet, logging all the data in a historian for future references at a centralized location, keeping the human operator updated via Human Machine Interface, and providing measures for any emergency and enabling control via SMS giving true remote control capabilities. In addition, the project can automatically run the suitable generator from his reading of the foundation power; in short it’s the best solution of the foundation electricity problem. Keywords — SCADA, PLC, Lab VIEW. 1. INTRODUCTION For the last few decades, Programmable Logic Controller (PLC) has been widely accepted in various process industries which is a solid state device designed to perform logic functions [1]. PLC has several known features including, flexibility, reliability, low power consumption and ease of expandability. The software abstraction level changes mere requirement in extending and optimizing the control process rather than internal rewiring [2, 3]. Industrial control system (ICS) is a general term that encompasses several types of control systems, including supervisory control and data acquisition (SCADA) systems, distributed control systems (DCS), and other smaller control system configurations such as skid-mounted Programmable Logic Controllers (PLC) often found in the industrial sectors and critical infrastructures. ICSs are typically used in industries such as electrical, water, oil and gas, chemical, transportation, pharmaceutical, pulp and paper. SCADA systems became popular to arise the efficient monitoring and control of distributed remote equipment’s [4]. PLC can have the communication with SCADA through tags of information [5]. In literature, many reports are found pertinent to successful integration of PLC with SCADA for number of applications [6, 7]. Today SCADA systems include operator-level software applications for viewing, supervising and troubleshooting local machines and process activities. Powerful software technologies are used for controlling and monitoring equipment’s in easy-to-use web-based applications. In today scenario in control industries, many more sophisticated instruments are introduced which supports higher data rate. The new enhancements made in the automation of industrial processes have been realized through OPC server [8, 9]. 2. SCADA A. SCADA SCADA is an acronym for Supervisory Control and Data Acquisition. SCADA systems are used to monitor and control a plant or equipment in industries such as telecommunications, water and waste control, energy, oil and gas refining and transportation. These systems encompass the transfer of data between a SCADA central host computer and a number of Remote Terminal Units (RTUs) and/or Programmable Logic Controllers (PLCs), and the central host and the operator terminals. A SCADA system gathers information (such as where a leak on a pipeline has occurred), transfers the information back to a central site, then alerts the home station that a leak has occurred, carrying out necessary analysis and control, such as determining if the leak is critical, and displaying the information in a logical and organized fashion. These systems can be relatively simple, such as one that monitors environmental conditions of a small office building, or very complex, such as a system that monitors all the activity in a nuclear power plant or the activity of a municipal water system. Traditionally, SCADA systems have made use of the Public Switched Network (PSN) for monitoring purposes. Today many systems are monitored using the infrastructure of the corporate Local Area Network (LAN)/Wide Area Network (WAN). Wireless technologies are now being widely deployed for purposes of monitoring B. Components of SCADA systems A SCADA system is consist of many components that is build wide control and supervision .The main components are: 1) One or more field data interface devices, usually RTUs, or PLCs, which interface to field sensing devices and local control switchboxes and valve actuators 2) A communications system used to transfer data between field data interface devices and control units and the computers in the SCADA central host. The system can be radio, telephone, cable, satellite, etc., or any combination of these.