JACoW logo

Joint Accelerator Conferences Website

The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.

Title A Communication Protocol for Motion Control Applications at the JCNS Neutron Instruments
  • H. Kleines, F. Suxdorf
    FZJ, Jülich, Germany
Abstract Main focus of slow control in neutron scattering is motion control for the movement of around 25 mechanical axes in a typical neutron instrument. The implementation of motion control functions in the JCNS neutron instruments at the FRM II research reactor in Garching, Germany, is based on Siemens S7 PLCs. A communication protocol called PMcomm which is optimized for motion control applications in neutron instruments has been developed at JCNS. PMcomm (PROFI motion communication) is based on PROFINET or PROFIBUS as the underlying transport protocol in order to facilitate the easy integration into the PLC world. It relies on the producer/consumer communication mechanism of PROFINET and PROFIBUS for the efficient direct access to often-used data like positions or status information. Coordinated movement of groups of axes is facilitated by a generic controller/axes model that abstracts from the specifics of the underlying motion control hardware. Simplicity was a major design goal of the protocol in order to allow an efficient and easy implementation on PLCs.
Paper download WEPHA080.PDF [0.854 MB / 4 pages]
Export download ※ BibTeX LaTeXText/WordRISEndNote
Conference ICALEPCS2019
Series International Conference on Accelerator and Large Experimental Physics Control Systems (17th)
Location New York, NY, USA
Date 05-11 October 2019
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Karen S. White (ORNL, Oak Ridge, TN, USA); Kevin A. Brown (BNL, Upton, NY, USA); Philip S. Dyer (BNL, Upton, NY, USA); Volker RW Schaa (GSI, Darmstadt, Germany)
Online ISBN 978-3-95450-209-7
Online ISSN 2226-0358
Received 08 October 2019
Accepted 10 October 2019
Issue Date 30 August 2020
DOI doi:10.18429/JACoW-ICALEPCS2019-WEPHA080
Pages 1276-1279
Creative Commons CC logoPublished by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.