Ensuring reliability and feasibility of software alarms with PHOEBUS in EPICS network for ALS-U

The Advanced Light Source Upgrade (ALS-U) project requires a reliable and efficient alarm system. This presentation examines the reliability and feasibility of a software alarm system implemented using PHOEBUS within the EPICS network. We will discuss its architecture, configuration strategies, and management techniques. Testing results highlight the system's robustness. Furthermore, we introduce a compact software demo environment for public use, offering key insights for comparable high-reliability environments.