Robert C. Sass Sheng Peng LCLS Upgrade Review June19 2008 IOC Requirements 1 LCLS Phase I Upgrade; IOC CAMAC Support Requirements Robert C. Sass Sheng.

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Presentation transcript:

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 1 LCLS Phase I Upgrade; IOC CAMAC Support Requirements Robert C. Sass Sheng Peng

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 2 Overview General Database Camac I/O Supported Camac Modules 360Hz Processing Crate Management Analog Inputs and Outputs Digital Inputs & Outputs Klystron Support Timing Support BPM Support Magnet Support Remote Camac Operation Unresolved Issues

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 3 General No support for SLC message service or database No support for powerfail recovery of a crate A reboot is necessary if a crate fails and is brought back online No support for the old MPS system We assume that the new MPS will be fully functional Support only for the following micros: LI20-LI30 CA01, CA11 MC00, AB01, CB00, FB31?

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 4 Database Mostly automated tool to translate relevant SLC database primaries for supported micros to EPICS database records. All relevant crates and supported modules must be translated for each micro. PV names preserved for HLA when underlying hardware changes. EPICS database records will receive data from Camac I/O. Asynchronous records for output processing.

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 5 Camac I/O Existing CAM* routines updated for the FECC project. Thread safe All 32 bit pointers GCC compatible Using them is the required implementation. Some Camac modules have special I/O “needs” All micro code made GCC compatible as part of the FECC project Much existing micro Camac code can be used with minimal change Take advantage of new PCSD features Three priorities; use highest for 360Hz Optional interrupts Changeable timeout Actual package execution time available

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 6 Supported Camac Modules IDIM/LDIM – Isolated/Latching Digital Input Module. IDOM – Isolated Digital Output Module. SAM – Smart Analog Monitor. DAC – Digital to Analog Converter. PDU – Programmable Delay Unit. BPM – Linac Beam Position Monitor (remaining EP-BPMs replaced) PPOM – Pulsed Power Output Module. PIOP – Parallel Input/Output Processor. SBI – Subbooster Interface. PSC II – Power supply controller SMC Stepping Motor Controller CV - Crate Verifier (optional).

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 7 360Hz Processing Only support PDU timing device. Use high priority request of the PCSD sans interrupt. Provide user callback mechanism at defined set of fiducial sub-harmonics. 120Hz, 60Hz, 30Hz, 10Hz, 5Hz, 1Hz, 0.5Hz Selectable callback priority.

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 8 Crate Management All crates initialized at IOC boot/reboot. Similar to what micro crate job does Special initialization for individual modules: PDU, IDOM, SAM, PIOP PIOP image and tmatrix available as files No access by other threads until crate is initialized. No access to PDU, IDOM, SAM and PIOP until they have been initialized. Periodic crate operational check.

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 9 Analog Inputs and Outputs Only the SAM is supported for analog inputs. Process all analog inputs at 1Hz. Support for the following E.U conversions: Linear. Logarithmic. Polynomial. Ion Guage. Phase Mixer. Parabolic Interpolation. See VMS ref_rmx_anlg:polyint.f86 Thermocouples. See VMS ref_rmx_anlg:thermist.f86 Calculated values. Dynamic Disk Loaded Waveguide dynamic tolerance adjustment. Interpret E.U. tolerances in two ways: 1.E.U. = Lim1 +/- Lim2 2.Lim1 <= E.U. <= Lim2 Analog outputs are done by each job. What conversions are needed?

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 10 Digital Inputs & Outputs IDIM, LDIM and IDOM are the only digital modules supported Process all digital inputs at 1Hz. Process digital outputs on demand.

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 11 Klystron Support Implement both types of FTP reads: Ordinary System Volt Periodic status checks and trim phase. Implement all functions that update the PIOP KLYS_UPDATE_PIOP - General PIOP update KLYS_UPDATE_PIOP_PADONLY - Update PAD block KLYS_UPDATE_PIOP_MK2ONLY - Update MK2 block KLYS_UPDATE_PIOP_NEWPHASE – Set new phase KLYS_TRIM_SLED – Move SLED to position in database KLYS_TRIM_PHASE – Move Fox shifter within tolerance of designated phase KLYS_PTRB_PHASE - Perturb phase by requested amount KLYS_FOXHOME - Set Fox phase shifter to home

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 12 Timing Support Update of single PDU value. Update of modulo-36 time slot counter. May support diagnostic readout of PDU status registers and memory.

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 13 Individual BPM Display

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 14 BPM Support No private calibrations. PVs to support Beam Synchronous Acquisition (BSAC) functions in IOC for BPMs. Public Calibration Set x & y offsets attenuator and pedestal Pulse based readout resulting in X, Y and tmit Standard Linac BPMs map into EPICS BSAC Application PVs.

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 15 Magnet Support – LCLS Display

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 16 Magnet – Individual Magnet

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 17 Magnet Support Existing EPICS magnet function Support PSC II and SMC for EPICS magnet functions. No support for self test. PSC II is complicated Analog output for setpoint 2 Analog inputs for shunts or transductors 8 bits of digital input 6 bits of digital output Selectable ramping rates Some “special” code required e.g. set mode before ADC read, delay when switching analog inputs etc. Kristi assures me that these will map into EPICS PVs for magnet support SMC is fairly simple Set number of steps Start/stop Read status and counter Front panel adjustments for acceleration and frequency

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 18 Remote Camac Operation Support execution of a Camac package originating outside of the IOC. This means rebuilding the package to use PCSD dual-ported memory. Only accept requests and return results via Channel Access. Should support repeated execution of a package for diagnostic purposes.

Robert C. Sass Sheng Peng LCLS Upgrade Review June IOC Requirements 19 Unresolved Issues FB31 Energy loop needed? Not all PSCs in linac are needed. Can they be replaced with EPICS H/W? Supported output conversions?