Ignition SCADA Platform Overview
Key Takeaway
Ignition is an industrial automation platform by Inductive Automation that provides SCADA, HMI, MES, and IIoT capabilities through a modular, server-centric architecture with unlimited licensing.
Quick Answer
Ignition is an industrial automation platform by Inductive Automation that provides SCADA, HMI, MES, and IIoT capabilities through a modular, server-centric architecture. Its unlimited licensing model eliminates per-tag and per-client fees, making it cost-effective for large-scale deployments in oil and gas, utilities, water treatment, and manufacturing.
Platform History
Inductive Automation released Ignition in 2010 as a successor to its FactoryPMI product. The platform was designed from the ground up to address the pain points of legacy SCADA software: restrictive licensing, proprietary data storage, Windows-only deployment, and poor web accessibility. Since launch, Ignition has grown into one of the fastest-adopted SCADA platforms in North America and internationally.
Core Architecture
Ignition runs as a Java-based gateway process on the server. The gateway handles all device communication, tag processing, scripting execution, alarm management, database connections, and client session serving. System integrators use the Designer (a thick-client launched from the gateway) to build projects, and operators access screens via Vision clients (Java desktop) or Perspective sessions (web browser).
Key architectural characteristics:
- Cross-platform runtime (Windows, Linux, macOS) via Java
- Web-based gateway administration console
- Multi-project support on a single gateway
- Gateway Network for multi-site federated architectures
- Redundant gateway pairs for high availability
Licensing Model
Ignition uses a per-gateway license with unlimited tags, clients, and connections. This contrasts sharply with legacy platforms that charge per tag count tier and per concurrent client. For large oil and gas SCADA systems monitoring tens of thousands of data points across hundreds of remote sites, this model can reduce software licensing costs by 50-80% compared to traditional SCADA software.
Module Ecosystem
Ignition's functionality is delivered through modules that snap into the gateway. Core modules include Perspective, Vision, Tag Historian, Alarm Notification, Reporting, SQL Bridge, SFC (Sequential Function Charts), Web Developer, and the OPC-UA suite. Third-party modules from Sepasoft (MES), Cirrus Link (MQTT/Sparkplug), and other partners extend the platform for MES, IIoT, and specialized industry use cases.
Deployment Models
Ignition supports several deployment topologies:
- Standalone — Single gateway for small to mid-size facilities
- Hub-and-Spoke — Central gateway with Ignition Edge nodes at remote sites, connected via Gateway Network
- Redundant — Active/standby gateway pair with automatic failover
- Cloud/Hybrid — Gateway running on AWS, Azure, or GCP VMs with field Edge gateways publishing via MQTT
Frequently Asked Questions
Ignition runs on Windows, Linux, and macOS. The gateway is a Java application, so it can run on any platform with a supported Java runtime. Linux is preferred for production server deployments.
Ignition uses an unlimited licensing model. A single gateway license covers unlimited tags, unlimited clients, and unlimited connections. You pay per module, not per tag count or client seat.
Yes. Ignition gateways can run on cloud VMs in AWS, Azure, or GCP. Field devices connect via Ignition Edge nodes publishing data over MQTT Sparkplug B through the cloud infrastructure.