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Supervisory Contro and Data Acquisition - SCADA
 

Supervisory Contro and Data Acquisition - SCADA

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    Supervisory Contro and Data Acquisition - SCADA Supervisory Contro and Data Acquisition - SCADA Presentation Transcript

    • SCADA Supervisory Control and Data Acquisition
    • Contents  Module (0) Getting Started  Module (1) Tags and Tag Logging  Module (2) Graphic Designer  Module (3) Message Display and Archiving  Module (4) Trends and Archiving System.  Module (5) Global Scripting (C-Script)  Module (6) Graduation Project
    • Objectives  Module (0) Getting Started 1. Definition of SCADA. 2. Benefits of SCADA. 3. Components of SCADA System. 4. Typical Configuration of SCADA System.
    •  Module (1) Tags and Tag Logging 1. Creating Project. 2. Installing Communication Driver. 3. Configuring Tags. 4. Tag Simulation 5. Coupling with a PLC. 6. Cross Reference.
    •  Module (2) Graphic Designer 1. Getting Introduced to Graphic Designer. 2. Creating Screens. 3. Graphic Libraries and Objects. 4. Interface Configuration. 5. Project Running, Auto-start and Exit.
    •  Module (3) Message Display and Archiving 1. The Advantage of Messaging System. 2. Configure Messages. 3. Define Message Classes and Types. 4. WinCC Alarm Control. 5. Message Archiving. 6. Acknowledgment Concept.
    •  Module (4) Trends and Archiving System. 1. Measuring Analog Signal. 2. Trend Display. 3. Archiving System. 4. Tag Logging. 5. Trend Analysis.
    •  Module (5) Global Scripting (C-Script) 1. Global Scripting Introduction 2. Project Functions. 3. Internal Functions. 4. Examples: Motor Switching ON/OFF, Scaling Function, Playing Alarm Sound,
    • Module (0) Getting Started 1. Definition of SCADA. 2. Benefits of SCADA. 3. Components of SCADA System. 4. Typical Configuration of SCADA System.
    • Definition of SCADA  SCADA is an abbreviation of “Supervisory Control & Data Acquisition”  SCADA refers to the combination of Telemetry and Data Acquisition.  Its Functions 1. Collecting Information 2. Transferring it back to the central site 3. Carrying out necessary analysis and control 4. Displaying this data on a number of operator screens
    •  What is meant by Telemetry? It is a technique used in transmitting and receiving information or data over a medium. The Information can be Measurements such as Voltage Speed or Flow. Control Actions such as Open % for a valve or ON/OFF Signals. The Medium Can be, Cable, Telephone or radio Information can be from One Location or Multiple Locations.
    •  What is meant by Data Acquisition? DA refers to the method used to access and control information or data from the equipment being controlled and monitored. The Data accessed are then forwarded onto a telemetry system ready for being transferred to the different sites. Data accessed can be analog and digital information gathered by sensors, Flow-meter, Encoders or Current transformers It also can be Control Actions for, Actuators, Relays, Valves, Motors, etc.
    • Benefits of SCADA  Allows an operator at a master facility to monitor and control processes that are distributed among various remote sites.  Eliminating the need for service personnel to visit each site for inspection.  Data collection/logging or make adjustments.  Real-time monitoring, system modifications, troubleshooting, increased equipment life, automatic report generating.  Other benefits SCADA Systems provide: 1.Reduces operational costs 2.Provides immediate knowledge of system performance 3.Improves system efficiency and performance 4.Increases equipment life 5.Reduces number of man-hours (labor costs) required for troubleshooting or service 6.Facilitates compliance with regulatory agencies through automated report generating
    • Components of SCADA System 1. Master Terminal Unit (MTU) 2. Remote Terminal Unit (MTU) 3. Communication Network 4. SCADA Software
    •  Master Terminal Unit (MTU) - MTU is the master or heart of a SCADA system and is located at the operator’s central control facility. - Data from remote field devices (pumps, valves, alarms, etc.) is sent to the MTU to be processed, stored and/or sent to other systems. For example, The MTU may send the data to the operator’s display console, store the information, and then send an operator’s initiate command to a field pump’s RTU.  Remote Terminal Unit (RTU) - RTU is a controller located at the remote site. - It gathers data from field devices (pumps, valves, alarms, etc.) in memory until the MTU initiates a send command.
    •  Communication Network - There must be uninterrupted, bidirectional communication between the MTU and the RTU for a SCADA or Data Acquisition system to function properly.
    •  SCADA Software - It provides a Human Machine Interface (HMI) allowing the operator to visualize all the functions as the system is operating. - It can be used to change set points, view critical condition alerts and warnings, and analyze, archive or present data trends. - Most of these software packages use standard data manipulation/presentation tools for reporting and archiving data and integrate well with Microsoft Excel, Access and Word.
    • Configuration of SCADA System  Point to Point Configuration. One Station Talks directly to another station  Point to Multipoint Configuration. Master Station talks and acquire data from all other remote station.  Peer to Peer Configuration. All Station are connected to each other and data can be transferred between any two of them directly w/o having an MTU.