IOTech Alarm Service
Unified and Standards-Based Alarm Management for the Edge
Unified and Standards-Based Alarm Management for the Edge
IOTech’s Edge Alarm Service, is a powerful solution designed to revolutionize how industrial organizations monitor, manage and respond to alarms across complex edge environments.
As industrial edge systems grow in scale and diversity—spanning a wide variety of different devices, protocols, and operational technologies—alarm management has become a critical challenge and difficult to unify. IOTech’s Edge Alarm Service addresses this head-on with a standards-based, and technology-agnostic approach to alarm normalization, routing, and control.
Built on Industry Standards for Maximum Compatibility
The Edge Alarm Service is built on the OPC UA Alarms & Conditions standard and aligned with IEC 62682 and ISA 18.2. This ensures broad compatibility across industrial systems—from OT devices (e.g. BACnet, Modbus etc.) and PLCs to other sources of alarm data such as rules engines and analytics components. It can be deployed with IOTech Edge Central, integrated with open-source EdgeX Foundry or embedded within custom frameworks, enabling seamless alarm unification in virtually any industrial environment.
Leveraging an event-driven architecture, the service evaluates alarm data in real-time, generating standardized alarm events that can be viewed and managed by via a dedicated UI or a comprehensive REST API.
Open API Access and Smart Routing
IOTech’s Edge Alarm Service is designed for developers and integrators, with its powerful REST API providing full lifecycle access to alarm data and operations, including:
- Monitoring and managing alarms throughout their lifecycle
- Querying current and historical alarm states
- Managing alarms with functions such as acknowledgment, confirmation, shelving, and suppression
- Subscribing to alarm events for efficient data-driven applications
- Secure authentication and access control
The service also enables intelligent alarm routing to multiple endpoints including Email, SMS, MQTT, Webhooks and Telegram, ensuring critical alerts reach the right systems or personnel at the right time—enhancing responsiveness and operational safety.
Easy Configuration and Scalable Architecture
Alarm Types
Alarms can be defined through simple configuration files or the REST API, supporting everything from basic thresholds to advanced multi-level models such as “high-high” critical events.
Model and configure alarms based on standard OPC UA alarm types:
Alarm Sources
With an architecture designed for scalability, the Alarm Service can process alarm data from many independent concurrent sources and is ready to grow with your edge deployment.
Alarm threshold data can originate from various sources, including:
- Industrial devices, such as a temperature value read from a Modbus device register
- Native device alarms, such as a BACnet device generating its own alarm
- Application subsystems, such as a rules engine or analytics component that determines an alarm triggering event from multiple inputs
- Offline device alarms, such as a monitored device that becomes unreachable
Intuitive Alarm Management UI
For end user customers or operational teams who choose not to layer their own management tooling on top of the REST API, IOTech provides a modern, intuitive web-based interface. Designed with usability in mind, the UI offers clear visualization, streamlined navigation, and real-time interaction, making alarm monitoring and management fast, efficient, and accessible to all levels of operators
