Overview of the DCS Systems J. Varela, May 6th 2004 Electronics Week – DCS Review

Experiment Controls Run Controls (RCS): Configure and operate all local/global data taking sessions Monitor and protect the measurements and the data flow Based on the CMS online software framework (XDAQ, RCS) and commercial products (DBs, SOAP, XML, e-tools etc.) Detector Controls (DCS): Setup and monitor the detectors and the environment Monitor and protect the apparatus equipment Based on industry standards (PLC, field buses, PVSS and JCOP tools)

Detector Control (DCS systems) Detector subsystems -HV/LV -Fluids and environment -Cooling -Racks/Crates -Temperatures -Infrastructures -Test systems (Laser, LED, alignment camera etc..) Experiment supervision -DCS Resources handling -Alarm and loggings -History data base -External systems communication. Supervisor structure etc. TPGTrigger Primitive Generator RTPRegional Trigger Processor LV1Level-1 Trigger Processor GTPGlobal Trigger Processor TTCTiming, Trigger Control sTTSsynchronous Trigger Throttle System aTTSasynchronous Trigger Throttle System FESFrontEnd System FEDFrontEnd Driver FECFrontEnd Controller D2SData to Surface RUReadout Unit BUBuilder Unit FSFilter Subfarm EVMEvent Manager RMReadout Manager BMBuilder Manager EVBEvent Builder RCNReadout Control Network BCNBuilder Control Network CSNComputing Service Network DCNDtector Control network DSNDAQ Service Network DCSDetector Control System RCSRun Control System

Frontend Control Systems

New Framework released on 16 th January 2004 Version includes: –Core: Device Editor/Navigator, FSM –Devices: CAEN, Wiener, ISEG*, ELMB, Analog/Digital, Accelerator Data Server –Tools: Trending, Installation, Configuration Database –FW Driver: DIM JCOP Framework

Integration DCS – RCS Local DCS root node Local XDAQ Nodes (DAQ & DCS) Local DCS tree for HV, LV, P, T, etc. Electronics Setup, etc. Central RCMS Central DCS Sub-Detector Controller Under discussion: Data taking – DCS Local nodes are integrated in the Run Control tree No beam periods – Central DCS takes control of DCS tree DCS services Interfaces already existing: - RCS – DCS : commands and status ownership - XDAQ – PVSS: data exchange Plans to install and test RCS- DCS demonstrator in PC farm at CERN in 2004

DCS Supervisor Demonstrator Central Control Panel SubDetector Control Panel Global State SubDetector States Services States Detector Subsystems Graphical visualization of CMS detector states Graphical visualization of subsystem states Distributed FSM Hierarchy

System with 130 PVSS projects each with 40k dpes (variables) was built in 15 machines –Start-up time for a project ~ 30 secs –Memory usage for a project ~ 80 MB –Additional memory per connection ~ 3 MB On-going tasks: –Alarm handling –Throughput –Parallelisation of start-up –Building a representative system hierarchy Project behind schedule Measurements (memory, throughput) are essential to define physical DCS architecture (machines, network) PVSS Scaling Up

DCS and Online Data Bases  DCS environmental data is stored in PVSS Archive or in external Oracle DB (not yet available in PVSS)  DCS configuration data can be stored/ retrieved from DCS Oracle DB:  Test new Framework interface to Configuration DB  Build interface between Framework and CMS Equipment Management DB:  Already done for Rack Control Application - CMS  General hardware configuration (HV, etc.) – JCOP Delivery  Integration issues with RMCS, XDAQ, DCS, Sub-detector DBs

JCOP/DSS system for CMS delivered and installed –No equipment is connected presently Version 2.0 of the JCOP/DSS S/W is being completed More powerful PLCs will probably allow integration of DSS and RSS in a single system Can JCOP/DSS technology be used to implement Sub- detectors Safety Systems (SSS)? Too late? Define DSS alarm/action matrix and DCS comand/states and make sure they are compatible Interface DCS-DSS needs to be implemented (manpower issue) Interface to DSS

High Voltages CAEN power supplies are fully integrated in the DCS Framework CAEN power supplies already used by ECAL in Test Beam CMS request for new CAEN boards to be supported in the FW is accepted: CAEN EASY System CAEN DT High-Voltage ECAL Endcap Power Supplies: ISEG? Considering now CAEN option Problems with ISEG OPC Server

Low Voltages Two solutions for Control and Monitoring of AC-DC Converters: - Proposal from CAEN (GECO Board), integrated in overall solution for LV distribution. - Atlas ELMB (provided dedicated CMS production can be organized) Both solutions are supported by JCOP software

Rack Control Rack Control is a JCOP project with multiple components:  Rack mechanics and cooling (EST/LEA)  Rack power and control (ST/EL)  Rack monitoring hardware (EP/ESS)  Smoke detection (ST/MA)  Rack Control Software (CMS) JCOP Rack Application is being developed by CMS (R. Gomez-Reino): Specification document discussed in JCOP framework First prototype was implemented Configuration using Equipment Management DB Interface to Monitoring Board is working Discussion with ST/EL on communication with power control PLC (draft doc) Interplay with RSS/DSS is better understood now Complete rack prototype suitable for software test is being installed by EP/ESS and ST/EL

Rack Control Application FW Device Editor RacRac Rack Monitoring EMDS Interface 3D View (in development)

Detector Environment Monitoring Need to review sub-detector hardware plans and find common solutions (sensors, readout) Define plans for usage of ELMB (Atlas Embedded Monitoring Board): Used by Rack System, ECAL and Alignment RPC is considering it Others? Do we need a dedicated production of ELMBs?

 Experiment Gas Systems have a common implementation (provided by CERN Gas Group & JCOP)  All the sub-detector Gas Control Systems are supervised by a single PVSS system (redundancy is foreseen)  All gas parameters are made available to Central DCS or Sub-detector DCSs.  Sub-detector panels may display any gas parameters. These panels will not allow any actions. All actions must be performed from the Gas System panels.  Pannels in the Gas System will be developed and maintained by the GCS team. These can be accessed from any DCS station. Actions can be performed by shift operator and/or sub-detector gas expert (different users have different permissions)  A central gas support team, including piquet service, will be provided for all the experiments. Gas Control Model Approved by CMS DCS Board

DIM chosen as the middleware for DIP Abstract API on top of DIM Implementations for the various domains expected in Q2 04 Possibly available for test-beams in 04 ( access to SPS data ) LHC Data Interchange Protocol

JCOP Deliverables Hierarchy Control (4Q 2003) ok Configuration Tools (4Q 2003) ok HV Control (4Q 2003) ok Detector Safety System (4Q 2003) ok Data visualisation (4Q 2003) ok Web Access (4Q 2003) ok Gas Control (2Q 2004) Crate Control (2Q 2004) Rack Control (2Q 2004) Cooling and Ventilation Control (3Q 2004) Interface to Conditions Data Base (3Q 2004) Interface to Technical Services (1Q 2006) Interface to LHC Accelerator (3Q 2006)

PixelsTrackerECALHCAL General Framework Pixels Power Supplies HV Power Supplies Control High Voltage Pixels TemperatureLV Power Supplies Control Low Voltage Pixels CoolingHV, LV and I_leak DCU Monitoring Temperature Safety System (TSS) Readout Boxes Radiation Monitoring Temperature DCU Monitoring CoolingSource Calibration Pixels Front-End Control Temperature and Humidity non DCU Monitoring Precision Temperature and Humidity Monitoring Laser Thermal screen Control Monitoring LaserHF radiation monitoring Thermal and other Interlock control DCS Subdetector Work Packages (I)

DCS Subdetector Work Packages (II) Muon CSCMuon DTMuon RPCAlignment General Framework High Voltage Front-End Control and Readout Low Voltage Temperature and Humidity Gas, Cooling and Ventilation Racks and CratesMini-Crate ControlRacks and Crates

Subdetector DCS Milestones PixelFirst proto w/ PVSSQ4 03Not yet TrackerPrototype w/ PVSSQ4 05Waiting ECALTestbeam proto w/ PVSSQ3 03OK HCALFinal system w/PVSSQ4 04Waiting CSCFirst proto w/ PVSSQ2 03OK DTFirst proto w/ PVSSQ4 03OK RPCFirst proto w/ PVSSQ4 03Not yet DCS Project Planning (April 03):

DCS Conventions and InterfacesQ2 03 OK Naming scheme, Commands, States Data Bases Specification Q3 03 OK Configuration, Conditions, Equipment, Archive Demonstrator Central DCSQ4 03 OK Including scaling tests First prototype of complete DCS systemQ4 04 Integration of subdetectors (Slice test) Configuration Database DAQ interface Integration with Dedicated Systems Gas, Cooling, Racks, DSS Q1 05 Magnet, Technical services Q1 06 Central DCS Milestones