CMS HCAL

1
CMS HCAL
CMS HCAL

• Reorganization of CMS DCS and Relationship to DAQ
• S.Sergueev,
• FNAL/JINR

2
HCAL infrastructure HW

• HV power supply monitoring
• LV power supplies monitoring
• LV tº on-board monitoring
• Source calibration
• Laser calibration
• LED calibration
• Charge injection calibration
• Parameter downloading

LV1
Laser
HV
Source motor drivers
RBX parameters DB
HV
3
HCAL FE and services
Service/ feedback
Subdetector group responsibility
Status/ Command
Data/strobes
Subdetector Infrastructure
Infrastructure (cooling, rack control,)
FE access line
Local R/O
Subdetector
Active media
FE
TRIDAS
FED (DCC)
HPD
RBX
From other subdetectors
Mass storage
Link
4
HCAL controls
HCAL private SCADA, the HCAL DCS group
responsibility
Internal DBs
External DB (conditions DB)
PVSS II
PVSS II
Infrastructure slow control system
Service/ feedback
Infrastructure
Status/Command
On-line monitoring
PVSS II
XDAQ applications
Local R/O
Data/strobes
Active media
TRIDAS
FE
FED (DCC)
Sensor (HPD)
Mass storage
Other Subdetectors
Feedback loops
Link
5
HCAL trees (old)
CMS run control
Subdetector private control system (PVSS II)
Central DCS (PVSS)
DAQ
Could be partitioned
HCAL
ECAL
Muons
HV_Server
HO
HF
HB
HE
Local R/O
System8
System1
HE
HE-
Crate3
Crate1
Wedge1
Wedge18
Module1
Module6
HPD1
HPD4
Channel0
Channel7
HV
BV
V0
Vmon
Imon
V0
Vmon
Imon
HCAL Logical tree
Subsystems physical trees
6
HCAL trees (new)
CMS run control
Subdetector private control system (PVSS II)
Central DCS (PVSS)
DAQ
Could be partitioned
HCAL
ECAL
Muons
HV_Server
HO
HF
HB
HE
Local R/O
System8
System1
HE
HE-
Crate3
Crate1
Wedge1
Wedge18
Module1
Module6
HPD1
HPD4
Channel0
Channel7
HV
BV
V0
Vmon
Imon
V0
Vmon
Imon
HCAL Logical tree
Subsystems physical trees
7
Visible problems

• Main problem - Communication X-DAQ to PVSS
• Proposed protocol disturbs rules of OO
  programming
• As a result potential problems with maintenance

8
F.Glege, proposal for PVSS-XDAQ protocol,
original version
DIM
PVSS ? DIM
XDAQ ? DIM
DIM Name server
PVSS DP
DIM API
DIM API
XDAQ
XDAQ name
DIM name
PVSS name
PVSS name
DIM name
XDAQ name
PVSS-API
PVSS DP
XDAQ
PVSS API
PVSS name
XDAQ name
9
F.Glege, proposal for PVSS-XDAQ protocol with
comments
DIM
PVSS ? DIM
XDAQ ? DIM
DIM Name server
PVSS DP
DIM API
DIM API
XDAQ
DPE
item
TCP/IP buffer
XDAQ name
DIM name
PVSS name
DPE
item
TCP/IP buffer
PVSS name
DIM name
XDAQ name
PVSS-API
Name should be stored in config file (S.S.)
Name should be stored in config file (S.S.)
PVSS DP
XDAQ
PVSS API
PVSS name
XDAQ name
X-DAQ object, (S.S.)
X-DAQ object, (S.S.)
10
Proposal

• To have flexible architecture let us try to use
  DIM in the communication
• X-DAQ application lt-gt PVSS
• as the conservative solution