1. The ATLAS/TILECAL Detector Control System Helena Santos (LIP − Lisbon) on behalf of the Tile Calorimeter Group EBC LBC LBA EBC TILECAL is the hadronic calorimeter of ATLAS. The detector is located 100 m underground and can not be accessed during LHC running due to ionizing radiation. Thus, it must allow full remote diagnosis and operation. This is assured by the DCS – the system responsible for coherent and safe operation of the detector. pictorial view of the ATLAS calorimeters Tile barrel Tile extended barrel

2. TILE EBA LBA LBC EBC Infrastructure CAN PSU COOLING RACKS LASER Partition COOLING VME Crates DDC 200V PS AUX Boards Branch 1 Branch 2 Branch 3 Branch 4 Module 9 Module 10 …. Module 23 Module 24 LVPS 9 Drawer 9 ROD crate TTC crate SYSTEMS Finite State Machine (FSM)‏ FSM is extensively used in ATLAS DCS. It allows, among other, to enable/disable malfunctioning hardware, automatic detector operations, single subsystem operations and control integration in the ATLAS DCS.

3. Click to see fLVPS Click to see Drawer FSM NAVIGATION