ECALPrototype DCS system

using PVSSGünther Dissertori

(for Alison Lister)

ETHZ

8.7.2003

Contents:

• Proposed layout of the DCS• SM0 and SM1 layouts• Status of implemented sub-

systems• Conclusions

8.7.2003

Proposed layout

Proposed layout

• Separate into 4 sections of sub-detector: EBL,EBR, EEA,EEB• Each section has same structure• 7 sub-systems: HV, LV, Cooling, Precision Temp,

Humidity, Laser Monitoring, TSS• Communication to DSS, DAQ and CMS

central DCS

SM0 and SM1 layouts

?

• DSS monitors the PLCs of the TSS

• Internal structure reflecting that of the figure

• All testbeam data sent to Oracle devdb. Easy to retrieve data to text files

• Only systems not implemented: Laser monitoring and LV

Status of implemented sub-systems

• Based on FwFSM, Finite State Machine, sends commands, receives states

• As a separate PVSS system

• Will communicate with all other systems

• Implemented into the Hierarchy (FSM) so far for Cooling and HV systems. Others to follow....

Supervisory System:

Supervisory System:

Status of implemented sub-systems

Cooling system:

• Ready for testing

• Only sends states, does not receive commands, passive monitoring.

• Calibration coefficients and limits can be changed from PVSS with a password.

Cooling system main panel:

Status of implemented sub-systems

HV:

• installed on final PC, long term stability tests started

• Need a password to change any settings and turn on/off channels.

Precision Temp:

• development started: SM0 will have 2 parallel systems: 1 using ELMB, other using Keithley

HV main panel:

Precision Temp main panel:PROTOTYPE ONLY: for the Keithley system!

Status of implemented sub-systems

Humidity:

• System similar to the Precision Temp, to be implemented

TSS:

• Implemented by the Belgrade group

• Being tested at the moment

Status of implemented sub-systems

Communication with DAQ:

• Done via an XML file read by a C++ proxy. Communication to PVSS via DIM.

(note: not the final system, only for SM0, until the XDAQ system implemented)

Status of implemented sub-systems

• LV communication to be defined before a PVSS development can start

• Possibility of web-enabling the Oracle database to allow everyone access to the data in the tables

Conclusions

• Close to achieve a nearly “complete” PVSS-controlled DCS for SM0 and SM1

• Aim for a complete control by the fwFSM system• SM0 first large scale test for ECAL-DCS• SM0/1 systems as “prototype” for complete

ECAL• The feedback from the shifters during the first

weeks of SM0 will be very important