1

L1CAL for

DAQ Shifter

By Selcuk Cihangir3/20/2007

Representing

L1CAL group (slides from many people)

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Outline

• Why?• What?• When and where? (Obvious)• How?• What to do with it? (Procedures)• Last Word, until……

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Why?

• Obsolete components of old system (1988)• Operate with 132 ns and 396 ns bunch spacing at

L=2x1032

• Improved sampling and filtering to more precise measurement of Et on trigger towers, better threshold and better background rejection

• Additional rejection from cal-track matching• Able to do clustering, finding objects (electron, jets,

taus, etc): Used to be done at L2 for RunIIa• More compact system, easy maintenance

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What?

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Patch PanelPatch Panel Card

BLS CablePleaded Foil Cable

Components

in MCH1

Front pins to BLS signals

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ADF CardsLVDS Cables

Pleaded Foil Cables

ADF Crate-Front ViewADF Crate-Rear View

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TAB’s GAB TAB’s

TAB/GAB Crate-Front ViewTAB/GAB Crate-Rear View

LVDS Cables

8Readout Crate Communication Crate1

2

3

4

5

6

7

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L1 Calorimeter Trigger Control Path: Hardware

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L1 Calorimeter Trigger Control Path: Schematics

L1Cal ExpertPrograms

L1Cal TCC

COOR

Monitoring Clients

Bit3B

it3

V.I

. Mas

ter

(to

AD

F)

V.I

. Mas

ter

(to

VR

B)

VM

E/S

CL

(to

TA

B)

SC

L D

istr

ibu

tor

(to

AD

F)

L1Cal Comm.Crate VME-9U

ADF Crate #1 of 4VME-6UA

DF

#20

V.I

. Sla

ve

AD

F #

20

… ADF Crate #4 of 4VME-6UA

DF

#20

V.I

. Sla

ve

AD

F #

1

……

TAB/GABCrateCustom-9U

TA

B #

1

TA

B #

8

GA

B

…L1CalReadoutCrateVME-9U

V.I

. Sla

ve

VR

B

VR

B

VR

BC

SB

C

L3

L2

Ethernet

Optical Fiber Splitters to L2Cal Crate

…

P. Laurens Rev: 31-May-05 (ALS, PAL)

TFW

SCL

1 SCLVME

2 Bit3

3 VIM

4 VIS

5 SCLD

6 VRBC

7 VRB

8 SBC

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Experts Do

• Download Firmware• Initialize the system• Do pedestal runs (not anymore)• Adjust Pedestals• Power up and down the system• Do Pulser Runs• Others• What does the shifter do?

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L1Cal ExpertPrograms

L1Cal TCC

COOR

Monitoring Clients

Bit3

Ethernet

TFW

SCL

Procedures-Monitoring Tools (for Experts)

L1Cal TCC GUI

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New Tool: Adjust Pedestals (for Experts)

Possibility to return the previous values

Records of changes are kept

Click to run. Takes a minute

Get to this from Control/StatusButton of the L1Cal TCC GUI

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L1Cal ExpertPrograms

L1Cal TCC

COOR

Monitoring Clients

Bit3

Ethernet

TFW

SCL

L1Cal TT Monitor GUI

Menu:Take MeanMeanx100SDx100

OperationCondition

BX Choice

Max ADC

Detector Region

One turn of data every 5 seconds

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How to Run

On an Online machine• Setup d0online• cd

/projects/D0l1/l1cal2b/l1cal2b_monitor/py/• ./L1CalIIB_TTMon.py• ./L1CalIIB_TabGabMon.py

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Record TT’sbeyond range

Best Indicator to problem TT: Large SD

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Record TT’soutside range

Chose E or Et

Logfile_2007_03_10_14_17_39In directory this is run from

New Tool: Recording problems (for Experts)

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HAD TT (-9,22)

Catching a Hot TT

Information fromRecorded monitoring

GUI

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L1Cal ExpertPrograms

L1Cal TCC

COOR

Monitoring Clients

Bit3

Ethernet

TFW

SCL

L1Cal TAB/GAB Status GUI

Displays the ERROR codes at TABs and GAB as they occur

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New Tool-Coming Soon

should always be running without any human intervention as long as one of several online host is available. -> checks the full digital chain of the L1Cal:    -> parity, sync and BC errors for digital transmission in ADF->TAB->GAB    -> parity of TAB/GAB -> L2/L3 data    -> BC synchronization between ADF/TAB/GAB and VRBs.    -> Bitwise agreement of simulated and/or terms from measured raw TTs.

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New Tool-Cont.

This requires some judgment from the shifter.  If it's the start of a new store or new run, or between stores and the L1Cal is out of the crate, then it might be stalled for up to a few minutes.

Problem detected, page L1Cal

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L1Cal ExpertPrograms

L1Cal TCC

COOR

Monitoring Clients

Bit3

Etherne

t

TFW

SCL

Tower ExclusionOnline ExaminePulser RunPedestal CalibrationGain Calibration

More Procedures (for Experts)

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Online Examine

Warm TT’sConfirm withMonitoring GUI SD display

Hot Cal Tower?

Adjustable threshold

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Different threshold

Dead Towers?

Online Examine

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Last Word….

• A versatile system• Still improving• We are learning more about its capabilities • Developing new tools as needs arise

Until …… We re-write this presentation once we know

more…………