| Paper |
Title |
Page |
| TUMBCMO08 |
Extending Phoebus Data Browser to Alternative Data Sources |
355 |
| |
- M. Romanovschi, I.D. Finch, G.D. Howells
STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
|
|
| |
The Phoebus user interface to EPICS is an integral part of the new control system for the ISIS Neutron and Muon Source accelerators and targets. Phoebus can use the EPICS Archiver Appliance, which has been deployed as part of the transition to EPICS, to display the history of PVs. However, ISIS data has and continues to be stored in the InfluxDB time series database. To enable access to this data, a Python application to interface between Phoebus and other databases has been developed. Our implementation utilises Quart, an asynchronous web framework, to allow multiple simultaneous data requests. Google Protocol Buffer, natively supported by Phoebus, is used for communication between Phoebus and the database. By employing subclassing, our system can in principle adapt to different databases, allowing flexibility and extensibility. Our open-source approach enhances Phoebus’s capabilities, enabling the community to integrate it within a wider range of applications.
|
|
|
Slides TUMBCMO08 [0.799 MB]
|
|
|
Poster TUMBCMO08 [0.431 MB]
|
|
| DOI • |
reference for this paper
※ doi:10.18429/JACoW-ICALEPCS2023-TUMBCMO08
|
|
| About • |
Received ※ 06 October 2023 — Revised ※ 12 October 2023 — Accepted ※ 21 November 2023 — Issued ※ 14 December 2023 |
| Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |
| TUPDP108 |
Progress of the EPICS Transition at the Isis Accelerators |
817 |
| |
- I.D. Finch, B.R. Aljamal, K.R.L. Baker, R. Brodie, J.-L. Fernández-Hernando, G.D. Howells, M.F. Leputa, S.A. Medley, M. Romanovschi
STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
- A. Kurup
Imperial College of Science and Technology, Department of Physics, London, United Kingdom
|
|
| |
The ISIS Neutron and Muon Source accelerators have been controlled using Vsystem running on OpenVMS / Itaniums, while beamlines and instruments are controlled using EPICS. We outline the work in migrating accelerator controls to EPICS using the PVAccess protocol with a mixture of conventional EPICS IOCs and custom Python-based IOCs primarily deployed in containers on Linux servers. The challenges in maintaining operations with two control systems running in parallel are discussed, including work in migrating data archives and maintaining their continuity. Semi-automated conversion of the existing Vsystem HMIs to EPICS and the creation of new EPICS control screens required by the Target Station 1 upgrade are reported. The existing organisation of our controls network and the constraints this imposes on remote access via EPICS and the solution implemented are described. The successful deployment of an end-to-end EPICS system to control the post-upgrade Target Station 1 PLCs at ISIS is discussed as a highlight of the migration.
|
|
|
|
Poster TUPDP108 [0.510 MB]
|
|
| DOI • |
reference for this paper
※ doi:10.18429/JACoW-ICALEPCS2023-TUPDP108
|
|
| About • |
Received ※ 02 October 2023 — Accepted ※ 04 December 2023 — Issued ※ 17 December 2023 |
|
| Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |