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INTERFACE DESCRIPTION PLC objects and HMI

INTERFACE DESCRIPTION PLC objects and HMI. CERN, EN/ICE, UNICOS Team. Objects & Layers Integration. SCADA Object. PLC Object. Object status. Manual Request . Human . Requests. SCADA Object. HMI. Object logic. Parameters. Auto. Requests. Parameters. Information. display.

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INTERFACE DESCRIPTION PLC objects and HMI

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  1. INTERFACE DESCRIPTIONPLC objects and HMI CERN, EN/ICE, UNICOS Team

  2. Objects & Layers Integration SCADA Object PLC Object Object status Manual Request Human Requests SCADA Object HMI Object logic Parameters Auto. Requests Parameters Information display Orders Process Inputs Object status Manual Request Process Supervision Layer Plant Operator In the Supervision layer the object presents the relevant information to the operator and allow manual commands OWS CERN Control Room(s) Control Layer SCADA Server(s) Field Layer Session 0: From specs to implementation

  3. Parent Object Objects status Process inputs Manual Requests Auto. Requests Parameters PLC internal Object Logic Status Orders Process output Information to or other object Child Auto Requests or to operator UNICOS CPC Object model Plant Operator Control Engineer PLC Object Session 0: From specs to implementation

  4. Interface example. OnOff

  5. Interface example. OnOff

  6. Interface example. OnOff

  7. Interface example. Analog

  8. Interface example. Analog

  9. Interface example. Analog

  10. Interface example. Analog Alarm

  11. Interface example. Analog Alarm

  12. Interface example. Analog Alarm

  13. TSPP Manager • Event driven • From PLC to data server • Time-stamped data at source • Communication optimisation Enrique Blanco, CERN

  14. TSPP Manager Session 0: From specs to implementation

  15. TSPP telegram Session 0: From specs to implementation The first 3 bytes of the message contain the letters “T”, “S”, “P” The 4th byte contain the number of words of the data part of one time-stamped data The 5th and 6th bytes (integer format) contain the size in words of all the time-stamped data Each time-stamped data is composed of • Aparticular header containing the time stamp in STEP 7 DATE_AND_TIME format • The origin of the data: DB number and start address inside the DB • Data which size is defined in the 4th byte of the global header

  16. TSPP performance Session 0: From specs to implementation PLC S7 319-3 PN/DP SCADA WINCC OA 3.8 SP2 (WINDOWS) AUTOMATIC TEST ANALYSIS PLC TSPP manager PLC Test routine WinCC OA Test scripts WinCC OA Analysis scripts - Values received - Values lost - Connection errors - PLC cycle time - Average throughput - Max and min performance - Number of PLC cycles per transmission • - UNICOS-CPC application with 5000 objects • - Simulation of values changes • - Parameters: • Change interval • Number of values to change - WinCC OA test application - Number of values selection - Change interval selection - Automatic test manager - Number of values selected - Change interval selected - PLC cycles used to send

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