SNS Integrated Control System EPICS Recent Applications and Future Directions Bob Dalesio June 12, 2001

SNS Integrated Control System EPICS is a Suitable for a Large Range of Control Installations PVsI/O Controllers K Advanced Photon Source300K 170 E KEK B240K 94 CCEBAF180K 98 BBESSY II150K110 SSwiss Light Source 90K160 DD0 (FNL) 60K 124 PPEP II RF and Longitudinal Control 19K 21 LLow Energy Demonstrator Accelerator 15K 18 CCompass 1K 1 KKeck II 2K 2 GGemini Telescope 35K 17 *Next Linear Collider Test Accelerator 3K 2 **Diamond 50K180 **Japanese Hadron Facility~50K ~100 **PF-AR~25K~50 **Spallation Neutron Source150K150 *Planned or under construction

SNS Integrated Control System EPICS Supports a Standard Control System Architecture Workstations: Sun Hp DEC/Alpha Silicon Graphics PC I/O Controllers: VME VXI PCI Field I/O Remote and Local I/O Buses: Control Net, PCI, CAN-Bus, Industry Pack, VME, VXI, PCI, ISA, CAMAC, GPIB, Profibus, Bitbus, Serial, Allen-Bradley, Modbus, Yokogawa, G-3, Ethernet/IP Field I/O Site LAN/WAN

SNS Integrated Control System Support For This Extensive Code Base is Divided into Core and Extensions Channel Access Client (CAC) Connection Data Transfers WAN/LAN Connection Data Transfers Channel Access Server (CAS) DB Engine Device Support Driver Support Generic Data Descriptor Channel Access Client Active X Labview / Excel.. Access Lib Any Data Store I/O ControllerGatewayPortable CASPCAS - Windows Archiving Archive Access Archive ViewingArchive Analysis User Tools DM/MEDM/DM2K/EDM/JDM Alarm Handler / stripTool/ knobManager Connection Data Transfers Portable Channel Access Server (CAS) Types Connection Server Program Interfaces C, C++, Fortran, JAVA IDL / Matlab / Mathematica ActiveX / DDE / VisBasic SDDS / SAD / tcl / PERL / Python State Notation Lang / FSQT

SNS Integrated Control System Modifications to Core are Tightly Controlled and Rigorously Tested CCore operational on LINUX, SOLARIS, Windows, RT Linux, and RTEMS eliminates the requirement to purchase vxWorks and supports a single computer control system – ANL, LANL, Canadian Light Source, KEK. NNew Data Object enables future modifications to the Channel Access Protocol and Event Mechanisms – LANL, BESSY, ANL CConversion from 68K platforms to Power PC for Process Database supports the execution of 100K process variables per second. (33 input->control->outputloops at 1 KHz) – KEK, Jlab, and SLAC. RReplace the Data Object in the Gateway with the New Data Object for Higher Throughput and Greater Reliability- BESSY RRemove Array Size Limitations and String Length Limitations - LANL and ANL RReplace the Original Channel Access Server with the Portable Channel Access Server and New Data Object to Reduce Code Management Costs - LANL and ANL

SNS Integrated Control System The Port of the EPICS Database Makes Single Box Systems Possible Field I/O Control System LAN/WAN Gateway Site LAN/WAN Operating Systems: Linux, Windows, Solaris I/O support: GPIB and Serial Devices so far….

SNS Integrated Control System Channel Access Client (CAC) Connection Data Transfers WAN/LAN Connection Data Transfers Channel Access Server (CAS) DB Engine Device Support Driver Support Generic Data Descriptor Channel Access Client Active X Labview / Excel.. Access Lib Any Data Store I/O ControllerGatewayPortable CASPCAS - Windows Archiving Archive Access Archive ViewingArchive Analysis User Tools DM/MEDM/DM2K/EDM/JDM Alarm Handler / stripTool/ knobManager Connection Data Transfers Portable Channel Access Server (CAS) Types Connection Server Program Interfaces C, C++, Fortran, JAVA IDL / Matlab / Mathematica ActiveX / DDE / VisBasic SDDS / SAD / tcl / PERL / Python State Notation Lang / FSQT EPICS Has Well Defined Interfaces for Extensions at all Levels

SNS Integrated Control System Extensions are Made and Maintained Throughout the Collaboration NNew Driver, Device, and Record support is developed at nearly every project that has used EPICS. PProcess Database Configuration tools have been developed for graphical and relational representations at PSI, LANL and ANL. DDisplay Managers have been developed at ORNL, Jlab, LANL, BESSY, and ANL. SState Notation Language was developed at LANL and then extended and supported by first Keck and now SLAC. TThe Alarm Manager is maintained by ANL. DData Archiving and Viewing has been done in parallel by LANL, DESY, Jlab, SLAC, BESSY, ANL. CClient connections to scripting languages Python, PERL, Tcl are available from KEKand LANL. CClient connections to Matlab, Mathmatica, IDL, Active X (Labivew, Excel etc..) are supported by the APS Beamlines and LANL SServer support to Active X (LabView, Excel etc..) is done by LANL. SSupport for standard buses is available from ANL, LANL, BESSY, LBL, DESSY, KEK, BNL with the list maintained at LBL. HHost Based Name Server – JLab

SNS Integrated Control System New Graphical Process Database Configuration Tool Done by JSI for PSI

SNS Integrated Control System New Process Database Configuration Tools for Oracle Import Files and Allow Editing

SNS Integrated Control System The Extensible Display Manager (EDM) from ORNL

SNS Integrated Control System Wide Area Network Support is Becoming More Commonplace MThe MEDM Display Manager is in test at Jlab using a web aware file system to download displays and channel access client interface to communicate to the control system. A CORBA interface to the archiver data is being developed at Jlab. EElectronic Log Books with web browsing capability is available from Jlab. CChannel Archiver, configured and managed over a web interface, was developed at LANL. AWeb-based archive data viewing and export was developed at LANL.

SNS Integrated Control System Web Based Archive Retrieval is Used to Find Data and Export in Other Formats

SNS Integrated Control System Web Based Electronic Log Book from Jefferson Laboratory

SNS Integrated Control System Channel Access Protocol is Being Made Extendable A A new data object was recently completed to enable the protocol to be extended. LLarge array support will be available this month in the embedded server, and this year in the portable server. EExtensions for notification on new classes of events – like metadata changes, related channel change, and timed monitors will be made with this new support. TThe current two servers will be replaced by one high performance, object oriented, flexible server reducing the time to implement new features. NNew and extended composite data structures can be supported that enable the creation of beam data, history data, and statistical data structures to support network based high level applications.

SNS Integrated Control System There is Increased Involvement of Industry in the EPICS Community ALaboratories face tighter cost control and technical expertise is more difficult to find, so large budget peaks that occur during construction are managed with more industrial support. PPSI recently completed the SLS with the RF and LINAC being delivered by commercial companies complete with EPICS systems. SSNS will contract out the conventional facilities and have them delivered with an EPICS control system. AAt LANL we have had RF and vacuum systems delivered with PLC systems that are then integrated into EPICS with minimal effort. KKEK trained Mitsubishi to develop and maintain the KEKB control system with lab supervision. WWe hope to encourage more industrial support when EPICS is made open-source - in the very near future.

SNS Integrated Control System Some Aspects of the EPICS Approach Are Still Difficult for Newcomers IIn EPICS, there is frequently more than one tool available to implement an aspect of the system. Deciding the correct approach is confusing for beginners. TThe distributed nature of the collaboration also presents no coherent set of documentation for new users – so much of the information is disseminated through collaboration meetings and personal contacts. There is a good guide at the LBL sight. TThe work of supporting new users is not funded by any organization – and as such, the ability to support this is limited to training workshops and documents that are written to support local groups.

SNS Integrated Control System The EPICS Collaboration Continues to Expand Support for Physics Projects MModifications to the channel access protocol will enable protocol extensions to support network communication for high level physics applications. EEPICS should soon be open source with no licensing or secret handshake requirements. NNew Hardware and Software Platforms are tested and integrated by members of the collaboration to take advantage of the latest technology. WWeb based and wireless technology is being incorporated for improved operations. NNew tools continue to be developed that reduce the cost of developing and maintaining our systems.

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