STANDARD DEVICE CONTROL VIA PVSS OBJECT LIBRARIES IN ALICE
A. Augustinus, Lennart Jirden, L. Wallet · 2007
The device control in the Large Hadron Collider (LHC) experiments at CERN is largely based on OPC servers and PVSSII Supervision Control And Data Acquisition (SCADA) systems. A software framework enables in addition the user to set up his PVSS project for the different devices used. To achieve a homogeneous operational environment for the ALICE experiment, these devices need to be controlled through standard interfaces. PVSS panels act as the upper control layer and allow for full control of the devices. The PVSS object oriented feature has allowed the development of device Object Libraries. This paper gives an overview of the device control architecture including PVSS, software framework, and OPC server. It describes the Object Libraries developed for some devices, and it explains how these libraries are integrated in the ALICE controls environment.