ICALEPCS2013 - List of Authors (Nicklaus, D.J.)

Paper

Title

Page

Channel Access in Erlang

462

D.J. Nicklaus
Fermilab, Batavia, USA

We have developed an Erlang language implementation of the Channel Access protocol. Included are low-level functions for encoding and decoding Channel Access protocol network packets as well as higher level functions for monitoring or setting EPICS Process Variables. This provides access to EPICS process variables for the Fermilab Acnet control system via our Erlang-based front-end architecture without having to interface to C/C++ programs and libraries. Erlang is a functional programming language originally developed for real-time telecommunications applications. Its network programming features and list management functions make it particularly well-suited for the task of managing multiple Channel Access circuits and PV monitors.

Poster MOPPC150 [0.268 MB]

TUPPC070

Detector Controls for the NOvA Experiment Using Acnet-in-a-Box

740

D.J. Nicklaus, L.R. Carmichael, D. Finstrom, B. Hendricks, CA. King, W.L. Marsh, R. Neswold, J.F. Patrick, J.G. Smedinghoff, J. You
Fermilab, Batavia, USA

In recent years, we have packaged the Fermilab accelerator control system, Acnet, so that other instances of it can be deployed independent of the Fermilab infrastructure. This encapsulated "Acnet-in-a-Box" is installed as the detector control system at the NOvA Far Detector. NOvA is a neutrino experiment using a beam of particles produced by the Fermilab accelerators. There are two NOvA detectors: a 330 ton ‘‘Near Detector'' on the Fermilab campus and a 14000 ton ‘‘Far Detector'' 735 km away. All key tiers and aspects of Acnet are available in the NOvA instantiation, including the central device database, java Open Access Clients, erlang front-ends, application consoles, synoptic displays, data logging, and state notifications. Acnet at NOvA is used for power-supply control, monitoring position and strain gauges, environmental control, PLC supervision, relay rack monitoring, and interacting with Epics PVs instrumenting the detector's avalanche photo-diodes. We discuss the challenges of maintaining a control system in a remote location, synchronizing updates between the instances, and improvements made to Acnet as a result of our NOvA experience.

Poster TUPPC070 [0.876 MB]

Paper	Title	Page
MOPPC150	Channel Access in Erlang	462
	D.J. Nicklaus Fermilab, Batavia, USA
	We have developed an Erlang language implementation of the Channel Access protocol. Included are low-level functions for encoding and decoding Channel Access protocol network packets as well as higher level functions for monitoring or setting EPICS Process Variables. This provides access to EPICS process variables for the Fermilab Acnet control system via our Erlang-based front-end architecture without having to interface to C/C++ programs and libraries. Erlang is a functional programming language originally developed for real-time telecommunications applications. Its network programming features and list management functions make it particularly well-suited for the task of managing multiple Channel Access circuits and PV monitors.
	Poster MOPPC150 [0.268 MB]

TUPPC070	Detector Controls for the NOvA Experiment Using Acnet-in-a-Box	740
	D.J. Nicklaus, L.R. Carmichael, D. Finstrom, B. Hendricks, CA. King, W.L. Marsh, R. Neswold, J.F. Patrick, J.G. Smedinghoff, J. You Fermilab, Batavia, USA
	In recent years, we have packaged the Fermilab accelerator control system, Acnet, so that other instances of it can be deployed independent of the Fermilab infrastructure. This encapsulated "Acnet-in-a-Box" is installed as the detector control system at the NOvA Far Detector. NOvA is a neutrino experiment using a beam of particles produced by the Fermilab accelerators. There are two NOvA detectors: a 330 ton ‘‘Near Detector'' on the Fermilab campus and a 14000 ton ‘‘Far Detector'' 735 km away. All key tiers and aspects of Acnet are available in the NOvA instantiation, including the central device database, java Open Access Clients, erlang front-ends, application consoles, synoptic displays, data logging, and state notifications. Acnet at NOvA is used for power-supply control, monitoring position and strain gauges, environmental control, PLC supervision, relay rack monitoring, and interacting with Epics PVs instrumenting the detector's avalanche photo-diodes. We discuss the challenges of maintaining a control system in a remote location, synchronizing updates between the instances, and improvements made to Acnet as a result of our NOvA experience.
	Poster TUPPC070 [0.876 MB]