1. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 1 Enclosure Control System (ECS) Michele De La Peña

2. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 2 ECS Presentation Outline The Role of ECS ECS Subcomponents Views of Major ECS Hardware Software Components ECS Commands and Status ECS and ECSGUI Design References

3. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 3 The Role of ECS ECS is primarily responsible for controlling mechanisms associated with the enclosure (aka the rotating portion of the building). A majority of these mechanisms affect the environment of the observing chamber, the mirror cells, and the instruments. The ECS does NOT control the rotation of the enclosure.

4. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 4 The Role of ECS ECS also is the communication channel through which LBT obtains mountain weather data from the SMT. The weather data is important to the decision making done by the ECS, PMC, and the TO, as well as computations for the PCS. Finally, ECS is also slated to handle monitoring of the UPS devices and the building fire alarms.

5. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 5 ECS Subcomponents Air compressors Chillers Dome Cooling Stealth Exhaust Dampers Exhaust Fans Hydrostatic Oil Bearing Instrument Cooling Lighting Mirror Ventilation Operations & Heat Trace Shutter Doors Stealth Exhaust Fans Snow Melting Thermal (not PLC) Ventilation Doors Weather (not PLC) UPS (not PLC) Fire Alarms Not yet implemented

6. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 6 Shutter doors, ventilation doors, snow melt boxcar, and the stealth exhaust tubes. Shutter Doors Ventilation Door Ventilation Doors Snow Melt Shutter Doors Stealth Exhaust Tubes

7. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 7 Stealth Exhaust System Backend of one of the four stealth exhaust fans locate on Level 4.5. One of the four stealth exhaust dampers in the closed position. Looking through the open stealth exhaust damper into the tube.

8. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 8 Mirror Ventilation Snow Melt in action 7 Hours After Before

9. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 9 ECS PLC on Level 4 Motor Control Center

10. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 10 Linux OS Windows OS ECS Subsystem ECSGUI Software Components ECS ControlLogix Program Logic Controller (PLC) (Allen-Bradley) PLCIO and CELL Libraries (PLC Communication Enabler and CIP/Ethernet Library for Linux)

11. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 11 TCS ECS ECSGUI ECS-Centric View PMC SMT PLCIO/CELL Thermal Computer WXGUI Commands Information

12. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 12 ECS Commands and Status Predefined TagsTypeNotes (user perspective) HOST_CMDSbinary 133 Commands Open (int index), Close (int index) HOST_SETPNTanalog 45 Commands Set Temperature (float newTemp) HOST_FDBKbinary 235 Commands Data from reflective memory (alarms) Rack/Slotbinary644 status bits

13. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 13 ECS Design ECS is not a “sided” subsystem in the sense of PMC where there are physically different controllers.  ECS accesses only one PLC. Any “ECS subsystem” may control a multiplicity of hardware components. ECS classes are mapped directly to their hardware counterparts (e.g., Damper.[h/cpp]). Many ECS classes utilize composition in that they are comprised of many components.

14. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 14 ECS Design …

15. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 15 ECSGUI Design … There is a single ECSGUI which handles all ECS/ECSPLC commanding and status. ECSGUI classes are mapped directly to their hardware counterparts (e.g., GDamper.[h/cpp]). ECSGUI classes rely heavily on inheritance (similar components) and composition (reflecting the literal composition of the GUI page). There is a single WXGUI which displays mountain weather information.

16. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 16 ECSGUI Design/Nomenclature Mode (Local: physical control at panel, Remote: control via software) Breaker (Open: no electrical connectivity, Closed: electrical connectivity) Control (Manual: User control through the GUI, Automatic: System automatically adjusts itself according the set point values and real-time input)

17. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 17 ECS Reference Documentation LBT Enclosure Control Description 309m001d Enclosure Control System Acceptance Test Summary 309s002b ECS Commissioning Test Plan and Report 309s010b

18. 31 October 2006 M. De La Peña Software Cross-Training Session LBT TCS - ECS 18 ECS RULES (ECS controls the Shutter Doors)