1. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 1 ECAL DCS @H4 G. Dissertori DCS Coordination Board, Nov 10, 2004 Status report Trigger/DAQ project  DCS CMS DCSECAL DCS

2. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 2 Outline u Overview u Precision Temperature Monitoring (PTM) u Humidity Measurement (HM) u ECAL Safety System (ESS) u PVSS Monitoring (and related issues) u Note : For details on the PTM/HM and ESS hardware (sensors, readout) I refer to the DCS ESR, May 04!

3. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 3 Overview ECAL module crystal PCBs for VFE and FE cooling LV, HV Laser system Offline, DAQ Data Bases Data Bases PVSS prec. temp. sensor Monitoring ESS temp. sensor + WLD Monitoring Safety, PLC interlock cooling, faults humidity sensor

4. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 4 SM10

5. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 5 PTM Precision Temperature Monitoring - PTM S. Zelepoukine, IHEP Protvino and ETHZ

6. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 6 PTM n Requirements: u very high precision temp. monitoring : check stability of water cooling system, to stay within 0.02 - 0.05 deg C. l no hardwired feedback to cooling u relative precision : 0.01 deg C u one sensor/module on thermal screen and grid u main water IN, main water OUT

7. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 7 Patch panel Patch panel Thermal screen Grid Sensor probes location inside SM: Probes of type 1 (N = 4 + 4)Probes of type 2 (N = 2) Number of probes (per SM): 4 + 4 + 2 = 10 Each probe has its own signal cable – twisted pair M1M2M3M4 PTM : Sensor location

8. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 8 PTM : Readout - Layout ELMB Cur.src PC / PVSS ECAL UXC55 balcony: Counting room 20x2 STP cables CANbus cables ~ 500 sensors (NTC thermistor Betatherm; 100K @ 25C; indiv.calibrated; better than 0.01C rel.accuracy) Readout electronics: ELMB based; ELMB reads voltages and converts to digital data, then sends data via CANbus. DC-DC converters DC Power supplies DC Power supplies Monitoring application: PVSS based; data storage/archiving, visualization/trending, warnings/alarms. Network access Galvanic isolation

9. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 9 PTM @ H4

10. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 10 Recent Results n First results from SM10 at H4: u Sensors, sensor probes, read-out practically final u Reading 4 sensors on grid, 3 sensors on thermal screen, and Water IN/OUT l One sensor lost, most likely due to bad intermediate connection inside SM before PP u Since about one week : installed 2 sensors on backplate l Above M1 and M4

11. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 11 Cooling Stability Zoom

12. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 12 M4 M3, M2 M1 Grid Thermal screen Water - IN 0.01C M1 M4, M3 Cooling stability = 0.01C (incl. day/night oscillations) Zoom :

13. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 13 Just to show uncompressed (in time) data… 10 min Grid Thermal screen Water - IN Ambient Div = 1.0C Div = 0.01C

14. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 14 M2 M1, M3 M4 M1 M2 M3 M4 28.5 30.6 28.2 25.7 M1 M2 M3 M4 28.5 30.6 28.2 25.7 Inside the electronics compartment From ESS, see later…

15. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 15 Conclusions on PTM n Cooling stability: u Achieved 0.01 C in the long-term, including day/night variations u Have a monitoring application, Serguei is working on a more “final” version… n Temperatures on outer surfaces u Recent measurements performed by Serguei u Is heating towards outside (or inside, depending on orientation) an issue? For other detectors? For other SMs ? u As next step, Serguei will move external sensors to lateral surfaces… n Hardware u Resolve issue of immersion probes u Intermediate connections will not be there any more

16. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 16 HM Humidity Monitoring - HM S. Zelepoukine, IHEP Protvino and ETHZ

17. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 17 Requirements n For HM we want to u Measure humidity level inside modules, precision about 5% n Sensors u One per module u UPS600 from Ohmic Instruments, resistive type, cheap u Transducers also from Ohmic Instr, n Readout u Same principles as for PTM : ELMB + Canbus to PC

18. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 18 RH cable shield grounded to SM10 M1, M3, M4 M2 (conn.broken) Amb1/2 (SM10) Amb_3 (DCS rack) RH – inside SM10 RH -- ambient water out water in Water temperatures Ambient temperatures

19. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 19 HM : Conclusions n A complete SM has been equipped with RH sensors and readout (SM10 in H4 testbeam) u Non-calibrated sensors/transmitters were used for SM10 l nevertheless acceptable channel to channel variations (2-4 %RH). u The RH readout chain “sensor-transmitter-ADC” is rather sensitive to the grounding of the HM signal cable shield: changing the grounding point can result in an offset for the measured RH value equal to about 10% RH l A detailed lab study is planned for investigating HM grounding issues. Also we would like to make the sensor excitation voltage frequency as low as possible (now = 440 Hz) – this will certainly require to recalibrate all transmitters at the new (lower) frequency. u A humidity generator has been ordered and now delivered. Building a laboratory setup for automated RH sensor/transmitter calibration is in progress now.

20. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 20 ESS ECAL Safety System - ESS formerly : TSS (Temperature Safety System) Belgrade group, ETHZ See also CMS NOTE 2004-013

21. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 21 Three interconnected system layers: ESS FE Layer Temperature conversion and channel multiplexing - ESS FE Layer, ESS PLC Layer Data acquisition, data processing and interlock generating - ESS PLC Layer, ESS Soft Layer System monitoring and system control - ESS Soft Layer; Schematic layout RS485 ?

22. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 22 NTC 470 Ohms Sensors : NTC 470 Ohms thermistors (EPCOS) positioned in pairs at each measurement point ( “Twin” sensors ). 2x twisted pair cable SCEM = 04.21.51.704.4 SCEM = 04.21.51.704.4, 2x2x0.05mm2, PETP insulation outside diameter 2.9mm, PETP insulation ESS : Sensor Location

23. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 23 Siemens S7- 400 Family PLC System for ESS: ESS : PLC

24. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 24

25. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 25 Experience up to now n Excellent performance of ESS u No problem during SM10 running up to now u Interlock tests at the startup were successful u Afterwards, no interlock up to now

26. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 26 PVSS Monitoring and Control S. Zelepoukine, P. Milenovic, R. Ofierzynski, F. Beaudette, A. Lister, R. Gomez-Reino, F. Glege Also : Thanks to S. Schmeling / JCOP See also talk by Bobby… Will also give a detailed presentation at a future JCOP meeting….

27. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 27 PVSS @H4 n Have implemented the monitoring of the following subsystems: u Temperatures from ESS u Water Leakage Detection System (via ESS) u Temperatures from PTM u Humidity (HM) u Cooling System (temperatures, flow, pressures) u Status of Laser System u HV and LV n Not implemented u Temperatures from DCUs u Storage to ORACLE DB

28. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 28 PVSS @H4 : Prototype for ECAL n First complete set-up of PVSS DCS system u At H4, includes: u PTM - HM - ESS - LV - HV - Cooling - Laser u + Supervisory system u Every application implements a Finite State Machine u Based on PVSS II, v.3, and the JCOP framework u Distributed system (Windows XP) on 3 PCs : l 1 : Supervisor, Laser, Cooling l 2 : HV, LV l 3 : PTM, HM, ESS

29. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 29 PVSS @H4 : Data Logging u For the moment, all data go to the PVSS archive (proprietary) u Not easy to get data out (apart trending, which is ok) l not foreseen as final solution (!) u Done because of pressure to get the FSM at H4 etc running u On the long term : ORACLE u A new expert is joining the efforts (Rick Egeland, Minnesota) l He will try to help us setting up the commun. with ORACLE and to develop scripts to easily retrieve data u But not more to say for the moment…..

30. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 30 Major Issues n During development : u Already preparing for the final ECAL application u Some debugging of Framework tools, in particular FSM, was necessary. Thanks to C. Gaspar for her feedback. u Suffered from missing documentation of Framework n Note : The continuous and friendly help by S. Schmeling was absolutely essential !! Thanks!! n HV - LV: u Major problems with the connection to CAEN crates u See dedicated discussion on this topic

31. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 31 Supervisory System : 1

32. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 32 Supervisory System : 2

33. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 33 Supervisory System : 3

34. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 34 HV Application

35. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 35 LV Application

36. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 36 Cooling Application Communication With cooling System via OPC Note: This application only monitors user can not operate the cooling system from here !

37. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 37 ESS Application

38. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 38 Conclusions n Hardware u PTM / HM / ESS u performs according to specs u Able to monitor temperature stability to 0.01 C n Software u Major efforts gone into development of DCS prototype u Achievement more or less our goal u Still unresolved : communication problems with CAEN crates u Note : A major effort in terms of man power was needed. This should be a warning for other sub-detectors…..

39. G. Dissertori ETH Zürich 10.11.2004 ECAL - DCS 39 Other issues… Switch to ELMB analog DC supply (RH uses a separate 5VDC supply)