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Oates, A.

Paper Title Page
TPPA30 Channel Access Clients on the Microsoft Windows Platform 155
  • B. G. Martlew
    STFC/DL/SRD, Daresbury, Warrington, Cheshire
  • A. Oates, G. Cox
    STFC/DL, Daresbury, Warrington, Cheshire
  The control system for the Energy Recovery Linac Prototype (ERLP) under construction at Daresbury uses EPICS and vxWorks on VME64x. The client software in use during the commissioning of the accelerator is based on PC consoles running Red Hat 9. Synoptic displays and engineering panels are created using the Extensible Display Manager (EDM) and other standard EPICS extension software is used for archival and alarm handling. The Synchrotron Radiation Source (SRS) control system uses a bespoke control system with client software on PC consoles running Microsoft Windows. We would like to employ a similar approach for the operational client software on ERLP with Channel Access clients running on Microsoft Windows PC consoles. However, the Microsoft Visual Studio development tools and ActiveX/COM technologies used for creating client side software on the SRS control system are now outdated and have been superseded by the .NET framework and associated developer tools. This paper discusses the different options currently available for developing Channel Access clients on the Microsoft Windows platform, along with progress in creating Channel Access clients for the .NET framework.  
TPPB38 Status of the ERLP Control System 244
  • G. Cox, A. Oates
    STFC/DL, Daresbury, Warrington, Cheshire
  • S. V. Davis, A. J. Duggan, A. Quigley, R. V. Rotheroe, B. G. Martlew
    STFC/DL/SRD, Daresbury, Warrington, Cheshire
  The Energy Recovery Linac Prototype (ERLP) is a 35 Mev superconducting linac currently being commissioned at Daresbury Laboratory. Its purpose is to demonstrate the technology necessary to design and build a 600 Mev energy recovery linac (4GLS), which, together with a suite of XUV, VUV, and IR FELs, can be used to undertake pump-probe experiments to investigate dynamic systems. The ERLP control system is based on EPICS, VME64x hardware, and the vxWorks operating system. Status control and interlock protection are handled by a Daresbury-designed CANbus system that has been tightly integrated into EPICS. Construction and commissioning of ERLP have taken place in parallel, and this introduced a number of problems in the planning and implementation of the control system. This paper describes the ERLP control system and disusses the successes and difficulties encountered during the early phases of commissioning. Plans are already in place to extend the control system to cover EMMA, a novel, non-scaling, fixed-field alternating gradient (FFAG) accelerator that will be added to ERLP in 2008/9.