DCS – SDD Low Voltage Monitoring

Jiří KrálCzech Technical University in Prague, FNSPE

Vojtěch PetráčekCzech Technical University in Prague, FNSPE

jiri.kral@cern.ch, ALICE Week 03 2006 2

External driver board prototype successfully tested with DCS, Carlos

and LV left and right boards

first production in couple weeks

jiri.kral@cern.ch, ALICE Week 03 2006 3

Testing setup

tests of connection of DCS board (via external driver board) to one ladder of 8 SDDs are running in Torino

detectors are controlled with simple command line programs, directly from DCS board

jiri.kral@cern.ch, ALICE Week 03 2006 4

DCS

no need for failsafe in programmable hardware layer

jiri.kral@cern.ch, ALICE Week 03 2006 5

Comleted DCS board part

power up and down sequence for Dilbert, DCUs, GOL

reset

all temperature, voltage and current data readout from DCUs

complete command set for Dilbert and DCUs

jiri.kral@cern.ch, ALICE Week 03 2006 6

To-do DCS board part

SEU error recovery

callibration

failsafe

smoothing

data exchange with DIM server

timeframe: 5 weeks

jiri.kral@cern.ch, ALICE Week 03 2006 7

To-do PVSS part

first simple opperating pannel expected in 7 weeks