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

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

1

Enclosure Control System (ECS)

Michele De La Peña

31 October 2006M. De La Peña

Software Cross-Training SessionLBT 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

31 October 2006M. De La Peña

Software Cross-Training SessionLBT 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.

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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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.

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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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

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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Shutter doors, ventilation doors, snow melt boxcar, and the stealth exhaust tubes.

Shutter DoorsVentilation Door

Ventilation Doors Snow Melt

Snow Melt

Shutter Doors

Stealth Exhaust TubesStealth Exhaust Tubes

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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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.

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

8

Mirror Ventilation

Snow Melt in action

7 Hours After

Before

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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ECS PLC on Level 4

Motor Control Center

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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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)

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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TCS

ECS

ECSGUI

ECS-Centric View

PMC

SMT

PLCIO/CELL

ThermalComputer

WXGUI

Commands

Information

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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ECS Commands and Status

Predefined Tags Type Notes (user perspective)

HOST_CMDS binary133 Commands

Open (int index), Close (int index)

HOST_SETPNT analog45 Commands

Set Temperature (float newTemp)

HOST_FDBK binary235 Commands

Data from reflective memory (alarms)

Rack/Slot binary 644 status bits

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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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.

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

14

ECS Design …

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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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.

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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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)

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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ECS Reference Documentation

• LBT Enclosure Control Description 309m001d

• Enclosure Control System Acceptance Test Summary 309s002b

• ECS Commissioning Test Plan and Report 309s010b

31 October 2006M. De La Peña

Software Cross-Training SessionLBT TCS - ECS

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ECS RULES(ECS controls the Shutter Doors)