The ProtoDUNE Single Phase Detector Control System

This paper presents the Detector Control System (DCS) that has been designed and implemented for the NP04 experiment at CERN. NP04, also known as protoDUNE Single Phase (SP), aims at validating the engineering processes and detector performance of a large Liquid Argon (LAr) Time Projection Chamber (TPC) in view of the DUNE experiment. Built at the CERN Neutrino Platform (NP) facilities, it started to operate in September 2018 after two years of construction and commissioning, using a tertiary beam of the CERN SPS accelerator. After an overall description of the distributed control architecture that has been chosen for the control of this experiment, focus will be put on describing the software system design, based on the CERN control frameworks UNICOS and JCOP (built on top of WINCC OA). The knowledge acquired during the operation of the DCS is discussed and future work are presented.