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LCLS Week 4-8 April, 2005 Steve Lewis

LCLS Week 4-8 April, 2005 Steve Lewis. X-ray Transport, Optics, and Diagnostics: Controls Status. Layout. Each hutch is 10 m long. FEH. NEH. FEE. Tunnel. Experiments: Atomic Physics. Front End Enclosure Fast Close Valve Slits Attenuators Shielding. Experiments Optics

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LCLS Week 4-8 April, 2005 Steve Lewis

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  1. LCLS Week4-8 April, 2005Steve Lewis X-ray Transport, Optics, and Diagnostics: Controls Status

  2. Layout Each hutch is 10 m long FEH NEH FEE Tunnel Experiments: Atomic Physics Front End Enclosure Fast Close Valve Slits Attenuators Shielding Experiments Optics Structual Bio Nano-scale Femtochem FEL Measurements & Experiments: Low Power Imaging High Power Imaging Spectrometer Calorimeter Flipper Mirror Experiments: Optics Warm Dense Matter

  3. Major Effort Areas • Getting an accurate count of all devices • Naming devices (and extending SLC convention) • Aligning XTOD controls devices with LCLS global standards • Reviewing cost+schedule • Installing EPICS at LLNL

  4. Counting Devices • Layout and instrument list has changed since original design • Original design was not “EPICS-aware” • Need block diagram or even one-line diagram to accurately define PLC, IOC and other controls-specific components • LCLS-wide standards are (just) now being set • All of above are basis for accurate cost+schedule

  5. Naming Devices • Will conform to (and extend) SLC conventions • Especially for “SLC-aware” devices • Allows uniform notation on spread-sheets, one-line diagrams, as well as EPICS configuration • Implicitly forces accurate counting

  6. LCLS Global Standards • Safety must be engineered in • Commerical products are one way to ensure this (UL, CE, …) • Initial Q/A will take place at LLNL for many items

  7. LCLS Global Standards… • Motor/Encoder chains: • OMS58 in VME+transition card+power “brick”: 3 vendors; extra box+cables; great reuse of EPICS practice; parts long-lived • Newport XPS single-box: turnkey; TCP/IP field-bus; new driver (and motor record?); rapid evolution of product likely • Other?

  8. LCLS Global Standards… • Vacuum/Gas: Controllers & Architecture • “Smart” controllers + inter-controller wiring + serial to EPICS • Wiring complexity; less global integrity • “Dumb” controllers+PLC+ Ethernet/IP to EPICS • Global integrity; simple wiring • ControlLogix vs. FlexLogic • Trade-offs in cost, need for wire-centers, availability of EPICS driver

  9. LCLS Global Standards… • Choices for Gauges • MKS-937A w/317-CEP and 422-CCG • 15msec response option • Other? • Choices for Ion Pumps • Dual; Quad; ? • MPS-2 • SafeCONN • Kaiser • StarCell • Other?

  10. Reviewing Cost+Schedule • Accurate device count supports: • I/O hardware and cabling costs • Approx $200K to be added for master PLCs • Configuring+Commissioning Effort • Approx 1500 hours to be added for Tunnel • Fixed costs as well: • Server for LLNL prototyping • Licenses (PLC…) • Any new drivers

  11. EPICS at LLNL • Set up a server • RH Linux or MacOS X? • Keep CVS at SLAC • Intellectual property issue? • Borrow small VME crate, CPU, EVR and EVG from SLAC • Gas Attenuator prototype is first application • First use of PLC • Will train LLNL staff

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