Eleni Mountricha NTUA

MDT PS DCS MDT PS DCS for ATLASfor ATLAS

Eleni MountrichaNational Technical University of Athens Power Supplies DCS group

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OutlineOutline

MDT chambers in ATLAS and their HW

PS DCS system

Present Status of PS system

Conclusion

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MDT chambers in ATLAS MDT chambers in ATLAS and their Hardwareand their Hardware

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ATLAS experiment ATLAS experiment and MDT chambersand MDT chambers

1150chambers

OuterMiddleInner

16 sectors

MDTs

stations

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Barrel

Side C

Endcaps

Side A

MDT chambersMDT chambersand the naming convention and the naming convention

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B I L 1 A 01BIL1A01

parti

tion

laye

r

stat

ion

side

sect

or

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size

Power Supplies modulesPower Supplies modules

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Crates

Boards LV: A3025 & A3016 HV: A3540P

MainframeCAEN SY1527

Branch ControllersA1676

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PS DCS systemPS DCS system

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SoftwareSoftware

PVSS (SCADA system) and Finite State Machine (SMI++ tool)

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Monitor and control Hardware using PVSS elements (datapoints)

Automate system in propagating commands as well as state and status

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User Interface LayerUser Interface Layer

Processing LayerProcessing Layer

Driver LayerDriver Layer

CTRLCTRL APIAPI

EVEV

DD DDDD

UIMUIM UIMUIM UIMUIM

DMDM Communication and Communication and Memory LayerMemory Layer

Com

mands

Sta

tes

& A

larm

sDCSTrackerVertex Muon

GasLV LVHVHV HVCoolingCooling Gas

HV LV Cooling GasHV Cooling GasHV LV

PVSS datapointsPVSS datapoints

Datapoints that correspond to hardware modules (channels, boards, crates, branch controllers, mainframe)

Datapoints that correspond to the chambers

Internal datapoints for the FSM for the OPC Server (communication with hardware) for the RDB manager (archiving of datapoint elements)

Alarms are activated for the datapoints and their elements

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FSM treesFSM trees

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One FSM tree is implemented for each partition

Hierarchy is set for the parts of the system (nodes and their children)

Commands and states propagate correctly

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FSM panelsFSM panels

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Tool panelsTool panels

Panels used by experts for the configuration of the system :

alarmHandling.pnl communicationHandling.pnl archiveHandling.pnl fsmHandling.pnl chamberDpHandling.pnl settingsHandling.pnl descriptionHandling.pnl

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Tool panel exampleTool panel example

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Present status of PS Present status of PS systemsystem

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BarrelBarrel Most chambers are incorporated in the system having LV

modules (9 modules missing) HV modules for almost all chambers in sectors 1-12

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EndcapsEndcaps Both Big Wheels and Small Wheels (one for each side) are

incorporated to the system having both LV and HV modules Chambers in the Outer layer in side C are also incorporated

in the system but most LV modules are missing

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ConclusionConclusion

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PS DCS system is in use for the MDTs

Improvements are made in the PVSS/FSM part of the system to achieve higher stability of the system

Development is implemented concerning expert panels to achieve more efficient control of the system

MDT PS from the HV/LV modules’ point of view are reaching their completion

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