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LCLS Week 4-8 April, 2005 Steve Lewis

Overview of X-ray transport, optics, and diagnostics controls status at LCLS, with details on layout, naming conventions, EPICS integration, device standards, cost review, and experimental setups. Includes insights on device naming, global standards alignment, and cost and schedule evaluation.

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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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