TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 1 CERN Portuguese Teachers Programme, 7 Sep 2011 Dr. Paulo Gomes on behalf of the team CERN – TE – CRG with the precious contributions of the colleagues: Project Associates (NTU-Athens, AGH-Krakow) Industrial Support Cryogenic Operation AB – CO

TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 2 CERN Portuguese Teachers Programme, 7 Sep m 170 m 270 m Sector = 3.3 km

TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 3 CERN Portuguese Teachers Programme, 7 Sep 2011 energy per beam: 7 TeV luminosity: cm -2 s -1 main dipoles field: 8 T current: 12 kA main magnets superconducting: 1200 D Q

TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 4 CERN Portuguese Teachers Programme, 7 Sep 2011 in all magnets +QRL: cryogenic sensors & actuators super-fluid liquid He bath temperature: 1.9 K cryo distribution line feeding magnets every: 107 m

TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 5 CERN Portuguese Teachers Programme, 7 Sep 2011 support and cool Current Leads that power the magnets instruments

16 cavities grouped on 4 modules, on IP4 200 cryo instruments

tunnel - radiation sector = 3.3 km alcoves - radiation free CERN Control Centre surface - local control room Ethernet Technical Network point-to-point cables 180 cryogenic CV without electronics 100 m CIET PVSS data server CRYO-SCADA PVSS data server 4x Profibus 1.5 Mbit/s 4x WorldFIP 1 Mbit/s 8 FEC WorldFIP – Ethernet Gateway 500 ms cycle FieldBuses ← large distances industrial electronics → protected areas CVs → electronics moved into protected areas front-end electronics → radTol custom made “intelligent” CV positioners with electronics 100 FIP crates custom rad-tol electronics 2 PLC Siemens S ms cycle 100 m

TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 8 CERN Portuguese Teachers Programme, 7 Sep 2011 TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 8 CERN Portuguese Teachers Programme, 4 Sep sensors and actuators 100 FIP crates 2 Siemens S7-400 PLCs 500 Closed Control Loops alarms & interlocks PLC cycle 500 ms objects of 16 types lines of SCL source code >3 Mbytes of machine code AND... the last 5 sectors were to be deployed at a rate of 1 new sector every 2 weeks

TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 9 CERN Portuguese Teachers Programme, 7 Sep instrumentation channels Profibus components 798 FIP crates 855 cards cable numbers specification files for manufacturing FIP Crates specifications for control software PLC, FEC, SCADA LHC Layout Database XML files for Mobile Test Bench cabling files for connecting & inspecting cables

TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 10 CERN Portuguese Teachers Programme, 7 Sep d 1d 1h 0.5d Specs *.xls Specs *.xls Specs xls Proces Logic *.xls Proces Logic *.xls Process Logic Layout DBs Deployment Compilation Test Template Templates Code generationChecker Templates Code generation

TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 11 CERN Portuguese Teachers Programme, 7 Sep 2011 CIET for Instrumentation Experts CRYO-SCADA for operation 200 panels / sector 40 synoptics, 35 bar-graphs, 60 alarms & interlocks Repetitive panels use parameterized templates Parameters generator, directly from DB

TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 12 CERN Portuguese Teachers Programme, 7 Sep 2011 The control software production relies strongly on databases a set of databases and on automatic generation tools a package of automatic generation tools, which have been developed to create code in several steps, according to a well established methodology UNICOStoolsessential The UNICOS automated generation & checking tools proved to be essential for flexible and robust PLC code generation automatic code generation Thanks to extensive automatic code generation, we achieved reduced software-production time and effort increased code reliability minimised risk of human mistakes simplified long term maintenance 1 new sector every 2 weeks We managed to reach a deployment rate of 1 new sector every 2 weeks, while in parallel giving support and modifications on other operating sectors And…

TE / CRG / Paulo Gomes The Control System for the LHC tunnel cryogenics, p. 13 CERN Portuguese Teachers Programme, 7 Sep 2011 At 10:28, one beam of protons was steered around the machine for the 1 st time Around 15:00 the other beam circulated in the second ring (anticlockwise) (