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Control/Monitoring

Control/Monitoring. Vertex Detector ODE Meeting Lausanne, 25 January 1999 P. Mato, CERN. CPU. CPU. CPU. CPU. CPU. CPU. Trigger & DAQ system. Data rates. LHC-B Detector. VDET TRACK ECAL HCAL MUON RICH. 40 TB/s. 40 MHz. Level 0 Trigger. 1 MHz.

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Control/Monitoring

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  1. Control/Monitoring Vertex Detector ODE Meeting Lausanne, 25 January 1999 P. Mato, CERN

  2. CPU CPU CPU CPU CPU CPU Trigger & DAQ system Data rates LHC-B Detector VDET TRACK ECAL HCAL MUON RICH 40 TB/s 40 MHz Level 0 Trigger 1 MHz Front-End Electronics Timing & Fast Control L0 1 TB/s 40 kHz L1 Level 1 Trigger 4 GB/s 1 MHz (multiplexing onto front-end links) LAN Read-out units RU RU RU 2-4 GB/s Read-out Network Experiment Control System Trigger Level 2 & 3 Event Filter Sub-farm controllers SFC SFC Variable latency L2 ~10 ms L3 ~200 ms Control & Monitoring Storage 20 MB/s

  3. Specific Requirements • Detector Control • Infrastructure (cooling, ventilation, magnet, power, LHC...) • Monitoring and Error/Alarm handling. • Front-end & ODE electronics • Configuration, parameter downloading (thresholds, gains, timing, operation mode, etc.)

  4. Specific Requirements (2) • Trigger system • Configuration: Program activation and parameter downloading. • Commands: Enable/disable. • Monitoring and Alarm handling. • Read-out units and read-out network • Configuration: Network configuration, parameter downloading. • Run time backpressure (trigger throttle). • Monitoring and Alarm handling. • Event Filter farm • Configuration: Program activation and parameter downloading. • Monitoring and Alarm handling.

  5. Control/Monitoring structure Technologies Configuration DB, Archives, Logfiles, etc. Storage Supervision SCADA WAN LAN Process Management . . . OPC LAN Communication Protocols Controller/ PLC Other systems (LHC, Safety, ...) VME PLC FieldBus Field Management Field buses Experimental equipment Sensors/devices SCADA = supervisory control and data acquisition OPC = OLE for process control PLC = Programmable logic controller Field buses = CAN, ProfiBus, WorldFip, ...

  6. JCOP (Joint LHC experiments Controls Project Sub-projects Technologies • Participation from 4 LHC experiments + IT/CO group. • Various sub-projects • Project meetings every 2 weeks • JCOP Workshop 6-8 September 1999 • For more information:http://itcowww.cern.ch/jcop/ • Commercial SCADA systems • Market survey • Evaluations phase 1 & 2 • Very Good progress SCADA • ComponentWare evaluation • Building the system from commercial components. • No progress • OPC evaluation • Candidate for standard interface • Good progress OPC Communication Protocols • CAN bus • Investigation of CANopen protocol • Good progress PLC • Architecture • Build a common architecture • Some progress. Stop now. • Test Bench (PLC, FieldBus, OPC,..) • A setup to test products,technologies • Little progress Field buses • Interface to Safety • Liaison with safety working group • Good progress • HV control, Gas control • Collect requirements. Common specifications Sensors/devices

  7. JCOP: SCADA Evaluations • Market survey. • From 140 companies contacted reduced to 5. • Evaluation phase 1: • Each of the 5 are being tested at CERN for 6/8 weeks. • Expected completion March’99. Select 2 or 3 for next phase. • Evaluation phase 2: • Use products in “test bench” and LHC test beam activities. • 4/5 months. • September workshop • Whether or not any SCADA system is suitable for experiment’s needs. • If answer is yes, then which product is the most promising. Need specific ODE requirements NOW

  8. Requirements for ODE Electronics • We need to know the ODE specific requirements: • Bandwidth requirements for the different activities • Configuration, Data-taking, Calibration, Test, … • Nature and amount of control and monitoring data • Tables and Arrays • Which fieldbuses? And protocols? • CAN bus? • Which other buses are needed? • JTAG, I2C, VME • Few concerns • SCADA systems deal with single data items (tags). No support for arrays and tables. • Graphical synoptics are useless for controlling and monitoring electronics.

  9. Summary • The Experiment Control System covers all the areas of control that do not require fast speed (40MHz) and large bandwidth (DAQ). • The CERN Management wishes to have a common solution for the 4 LHC experiments. JCOP project. • Good progress in most of the areas. A lot of weight put on the SCADA layer. For ODE is more important the lower layers (buses, protocols, interfaces, etc.) • In the area of LHCb Electronics (ODE, ...) we need to define what are our specifics needs. Input is urgently needed.

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