1. 1 ALICE Detector Control System (DCS) TDR 28 January 2004 L.Jirdén On behalf of ALICE Controls Coordination (ACC): A.Augustinus, P.Chochula, G. De Cataldo, S.Popescu, R.Vand Der Vlugt and the ALICE Collaboration

2. 2 Outline u Context u Architecture u System implementation u Schedule & milestones, status today u Responsibilities, cost

3. 3 Controls Context DCS ITS hv lv p TT pixeldriftstrip TPCMUON Detectors Services power cooling gas magnets infrastructure safety access External Systems ECS LHC DAQ Trigger HLT Ctrl

4. 4 Hardware architecture Supervisory layer Sensors, devices Field-buses, nodes PC-PCI/W-Linux, PLC, VME, etc. Communication (OPC, DIM) SCADA (PVSS) Technologies Framework Layers Structure User applications Process control layer Field layer Supervisory consoles Experimental equipment DCS LAN WAN Other systems: TRG, DAQ, etc. Configuration DB, Archives, Log, etc. PLC VME Field-bus DCS LAN Node Storage

5. 5 Software architecture (1) sub-sys 1 device a Control Units Device Units To physical devices sub-det B detector sub-det A sub-sys 2 device b … … gas DCS ECS power sub-det Esub-det D … … … racks sub-sys 1sub-sys 2 device e …

6. 6 Software architecture (2) PVSS CU Behaviour (FSM) configuration archiving Partitioning Alarm handling access, ownership dB operator parent child commands states PVSS FSM interface configuration archiving Alarms device driver access, ownership dB operator parent settings readings device Partitioning OFF ERROR ON STAND BY GO_STANDBY GO_READY GO_STANDBY RESET Alarm GO_OFF CONFIG RAMP_UP RAMP_DW

7. 7 Back-end and front-end components Field-bus Front-end application DEVICE DRIVERS DEV 1DEV 2 COMMUNIC DCS Front-end DB access ALARM PVSS CONFIG ARCHIV WEB ARCHIV COMMUNIC FSM DCS Back-end DCS network CONDIT PVSS CONFIG FEE CONFIG User application Process layer Field layer Supervisory layer

8. 8 Distributed PVSS system UIM CtrlAPI EVM DBM DB UIM DCS Dist … … UIM CtrlAPI EVM DBM D D D DB UIM … SSD UIM CtrlAPI EVM DBM D D D DB UIM TPC UIM CtrlAPI EVM DBM D D D DB UIM … TRD operator DEVICE

9. 9 DCS Sub-detectors FC TOF SPDSDDSSD TPCTRDZDCPMDHMP RO ITSPHO CPVCAL FMDV0T0 TRATRI MUCOSEMC Common solutions ~10 Common ~10 Specific

10. 10 PVSS CU Behaviour (FSM) configuration archiving Partitioning Alarm handling access, ownership dB operator PVSS FSM interface configuration archiving Alarms device driver access, ownership dB operator device Partitioning Agreed set of standard devices Standard interfaces – OPC, DIM Common tools OFF ERROR ON STAND BY GO_STANDBY GO_READY GO_STANDBY RESET Alarm GO_OFF CONFIG RAMP_UP RAMP_DW Standard FSM’s What is a common solution?

11. 11 HV & LV Common solution Console PC Server PC Power supply 1 Detector equipment CANbus or ethernet DCS LAN firmware Power supply n firmware Power supply 2 firmware … PS OPC-server PVSS OPC-client OPC standard PS proprietary Supervisory application using FSM and PVSS

12. 12 SPD HV control panels

13. 13 Common solution for FEE ALICE CONTROL ROOM PVSS console Common interface? many different FEE architectures ON DETECTOR VME SPD FEE JTAG HMPID FEE DDL TPC FEE ETHERNET TRD FEE ETHERNET … MXI … Front End Device (FED) DIM server interfaces FEE H/W MXI DDL ETHERNET Etc. FEE specific FEE common DIM client

14. 14 ALICE CONTROL ROOM ON DETECTOR CAVERN COUNTING ROOMS Devices Sensors Devices Sensors Devices Sensors Services: PLC process control applications Fieldbus or direct I/O DCS LAN supervisory applications Power & racks Cooling Gas Magnets Safety (DSS)

15. 15 Oxygen deficiency Dead-man device Fire brigade to point 2 Secure the zone CERN Safety Alarm Monitoring (CSAM) Flooding Evacuation alarm Gas detection Emergency call Blocked lift Emergency stop Fire/ smoke Level 3 alarms Safety actions Cut equipment gracefully Cut a single rack DCS Infrastructure Front-end electronics Cooling & gas Temp Power supplies Experiment equipment DCS actions Safety systems Cut group of racks Interlock spec. equipment Detector status Water leak Power status Temp Cooling water Experiment environment DSS alarm actions DSS Redundant PLC’s DSS system I/O units Hardwired interlock

16. 16 Pre-installation on surface Final installation in UX Commissioning Schedule & Milestones 2004 20052003 2007 2006 HW infrastructure Back-end + services Detector sub-systems Integration with DAQ/TRG/HLT M1 M2 HW infrastructure Back-end + services Detector sub-systems Integration with DAQ/TRG/HLT M3 M4 Individual detectors Groups of detectors Whole experiment M5M6M7M8

17. 17 Status today (1) u Back-end system u All main components are available in prototype form u An ALICE back-end system is being prototyped u Detector applications u Requirements defined to ~70% (URD’s) u Prototypes; u ~ 10% 1 st version implemented u ~ 70% started u ~ 20% not started or unknown

18. 18 Status today (2) u Services applications u Power & rack control: prototyping started u Cooling control:prototyping started u Gas control: TPC prototype ready u Magnet control: 1 st prototype installed u Safety:1 st prototype being installed u Infrastructure:requirements being defined u Interface to external systems u Interface to 1 st implementation TRG/DAQ/HLT:via ECS tested

19. 19 RESPONSIBILITIES Overall coordinationCERN Alice Controls Coordination (ACC) Basic software toolsCERN JCOP project (IT, EP departments) Back-end systemCERN Alice Controls Coordination (ACC) ServicesCERN ST, EP, IT departments DetectorsDetector groups COST DCS infrastructure514 kCHF ServicesMagnets664 kCHF Power, cooling, gas660 kCHF Safety, site infrastructure240 kCHF Total2078 kCHF