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EPICS V3 / V4 – Into EPICS 7

Explore the development of EPICS V3 and V4, from its inception in 1991 to the latest technologies enabling complex data management and analysis. Learn how pvAccess supports real-time data access and databases, while Ntypes enhance support for modern science facilities. Discover the capabilities of EPICS 4 in enabling middle layer services and vector support in the IOC. Dive into the exciting features of EPICS 7, set for release in September 2017, offering improved scalability and support for NTypes, pvAccess, and middle layer services like Channel Finder and Archive. Join the EPICS community in supporting developers through a dedicated council and witness the ongoing evolution of EPICS towards advanced control systems.

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EPICS V3 / V4 – Into EPICS 7

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  1. EPICS V3 / V4 – Into EPICS 7 Bob Dalesio Sept 18, ,2016

  2. Outline • Experimental Physics and Industrial Control System (EPICS) V3 • pvAccess, Ntypes, Extends V3 • EPICS 4 Architecture for Machine Control • EPICS 4 Architecture for Beam Line Control and DAQ • Making EPICS 7 Ready for General Use • Steering Council • Conclusions

  3. EPICS V3 Supports Instrumentation MMLT, SDDS, XAL, SAD, CDEV, SPEC, GDA, etc… Channel Archiver Other GUI tools EDM/MEDM/ DM2K/EDM/QT/IDL/ CSS CAC CAC CAC C, C++, java, Matlab, SDDS, Python CAC CAC Ethernet CAS CAS CAS CAS Util Database RF Database PS Database Vac Database CAS Distributed Front-Ends Diag Database Physical Device Physical Device Physical Device Physical Device Physical Device

  4. EPICS 4 Extends V3what’s in a name? EPICS is an open-source Supervisory Control and Data Acquisition Control System It is in use on all seven continents in accelerators, experiment control, astronomy, and industry. Start of development 1985, originally released as EPICS in 1991. Most recent developments enable this technology to be used for more complex data for data collection, management, and analysis (Started in 2007) pvAccess supports access to real time data as well as relational and non-SQL databases with Get, Put, Monitor, Put/Get, RPC (i.e. command/response) pvAccess supports existing DBR types and more complex data required for modern science facilities: N-dimensional arrays, tables, heterogenius array and directories in Normative Types. These new capabilities support middle layer services and structured data.

  5. EPICS 4 Enables Middle Layer Servicesand appropriate vector support in the IOC ?Refactor? XAL, MMLT, SDDS, GDA Matlab, SDDS, Python PVManager Control System Studio PVAC CAC CAC PVAC PVAC PVAC PVAC Thin HLA Client Data Browser Viewer Ethernet CAC CAC PVAS PVAS PVAC PVAS PVAS PVAS PVAS Archive Retrieval Multichannel Array Channel Finder Server Alignment, Magnet Map.. Unit Conversion Orbit NoSQL XML/RPC CAC SQL CAC Archive Appliance Mongo DB IRMIS PVAS CAS PVAS PVAS PVAS CAS CAS CAS Util Database RF Database PVAS PS Database Vac Database CAS CAS PVAS Diag & PS Distributed Front-Ends Diag Database Physical Device Physical Device Physical Device Physical Device Physical Device Diamond Simulation

  6. Services Support Data Acquisition Spec, GDA, Edna etc… PVManager Control System Studio PVAC CAC PVAC PVAC PVAC Channel Archiver View Thin HLA Client 5) Connect V4 client to existing codes Ethernet CAC CAC PVAS PVAS PVAS PVAS PVAS PVAS FileStore. Archive Retrieval Channel Finder Server Experiment MetaData. Virtual Axis Conversion Analysis NFS NoSQL XML/RPC CAC NoSQL CAC 4) Analysis In middle layer service creates results as NType RDB Archive Appliance Exp Data MDS PVAS CAS PVAS CAS 2) User FPGA Converts to NType 1) Request Parallel lanes for user FPGA Data Analysis. Data Acq. 3) Analysis In IOC creates results as NType User FPGA Detector N-lanes Detector Storage

  7. EPICS 7 Ready in September 2017 Release • Demonstrate Scalars, Vectors and NDArrays from V3 IOC over pvAccess using NTypes reliably in a DCS. • Demonstrate python, Java, C++, display, archive and alarm clients connection to V3 IOC using pvAccess and NTypes. • Demonstrate services other than IOC: Channel Finder, Archive, Save/Retrieve (MASAR), Alarm, Gateway, Data Set Index (metadata Service). • With coordination and support, this could be complete, tested and ready for release in 12 months.

  8. Council to Support EPICS Developers • A meeting was held to explore ways to support the EPICS developers. • A council is formed of those that provide the resources (money and manpower), to support the developers. • A commitment of resources (1 FTE at a minimum) is required for a seat on the council. • Membership is open to all facilities in our community that are able to commit resources • The Council will champion our work in their institutions by explaining how stated goals from an open source community, provide the foundation of their facility.

  9. Conclusions • NTypes and pvAccess enhance V3 to Provide that Support in EPICS 7 (0100 xor 0011) • pvAccess and NTypes are in use now at EPICS sites as a supplement to Channel Access (data transport for DAQ systems and service layer developments). • EPICS V4 is working at developer sites including: NSLS II, FRIB, FHI, LCLSII, and SNS. • Sept 2017 EPICS 7 release will run with pvAccess as the primary protocol and standard middle layer services.

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