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Control/Monitoring System Overview

Control/Monitoring System Overview. The DØ Control System. History Run I - CDAQ Built at DØ VMS and Pascal Platform Independence Decree Run II - EPICS Shared with HEP Community Runs on many platforms The Standard (Control) Model Operator Interface (OPI) Local Area Network (LAN)

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Control/Monitoring System Overview

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  1. Control/Monitoring System Overview

  2. The DØ Control System • History • Run I - CDAQ • Built at DØ • VMS and Pascal • Platform Independence Decree • Run II - EPICS • Shared with HEP Community • Runs on many platforms • The Standard (Control) Model • Operator Interface (OPI) • Local Area Network (LAN) • Input/Output Controller (IOC)

  3. EPICS Characteristics • High performance (records processed per second) • MVME-162 (68K) • >5000 • MVME-230x (Power PC) • >50000 • Extensive collection of applications • Database editors • Display programs • Alarm handler • Archiver • Many more

  4. The Standard Model OPI OPI LAN IOC IOC

  5. User Application EPICS File Extractor Ethernet LAN OPI Components Hardware Database CA Interface EPICS .DB File Channel Access Client

  6. Channel Access Database Access IOC Database Scanners Record Support Device Support Driver VME EPICS IOC Components

  7. Record Scanning • Periodic - Process at a periodic rate • Standard • 0.1, 0.2, 0.5, 1, 2, 5, 10 seconds • DØ may add other periods • Event - Process when an event is posted • 255 events • Begin run, End run, ... • I/O Event - Process on an external interrupt • Passive - Process only when requested

  8. Multiple Device Display

  9. Parameter Page

  10. Device Diagnostic Display

  11. Detector DAQ Run Services RUN SYNCH Stringout EPICS CA SERVER Secondary DAQ Control Flow Detector VMEBus 1553Bus Controls/Readout Crates CA Link UNIX Server EPICS CA CLIENT Collector / Router ITC Data Logger HOST SYNCH COMICS Disk ITC CONFIGDATABASE COOR RIP ITC TAKER UNIX Server

  12. EPICS CA Server Detector DAQ Shared Data EPICS CA Client Data Merge Collector / Router Collector / Router Monitor GUI Data Logger Data Distributor Data Logger EXAMINE Examine GUI Disk Disk Examine RIP RIP Secondary DAQ Data Flow Detector 1553Bus VMEBus Controls/Readout Crates CA Link ITC Control Room PCs Linux PCs UNIX Server UNIX Server FCC

  13. Front-End Significant Event System Filter F Filter SE Message Process Filtered Message Periodic Heartbeat Heartbeat Significant Event Server F F F F Display Archiver F HV Control Fault Watcher Run Control (COOR) Run Suspend

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