The standard architecture is best suited for applications that require a scalable, centrally managed SCADA system using only one on-premise Ignition server and select modules. This implementation is the most cost-effective setup since youonly pay for one license to have unlimited connections, tags, databases, and web-deployable clients.

Scale-Out Architecture

With the scale-out architecture, the workload is split between tags and I/O Gateways that handle device data and front-end Gateways that handle client applications. This architecture scales out easily without overloading any single Gateway.

Hub & Spoke

The hub and spoke architecture consists of two pieces. The hub piece consists of a central Ignition Gateway with Vision, Reporting and Mobile Modules and a database server. The spoke piece consists of a stripped-down Ignition Gateway with OPC UA and SQL Bridge Modules, dedicated for data logging. Each site is fully independent, operating with its own history, alarms, and clients, with the client Gateway being used for coordination and long-term history storage.


The Ignition enterprise architecture enables you to create a connected system while also securing data at multiple levels. Connect multiple sites to a central corporate server, and use Ignition Edge to ensure data from critical assets is never compromised. Connecting through a DMZ provides an additional layer of security for transferring andaccessing data. The Ignition Gateway connects easily to cloud services like Microsoft Azure, AWS, IBM Cloud, and Google Cloud for storage and analytics.


gnition IIoT can collects data from any devices at the edge of the network, publish that data to a central broker, and push that data to subscribed industrial and line-of-business applications. Ignition IIoT can connect to PLCs in the field through the use of the MQTT Transmission module, field devices with Ignition Edge MQTT installed, and/or MQTT-enabled edge gateways and field devices that use the Cirrus Link Sparkplug MQTT specification. This datais published to an MQTT broker, this broker can be located on-premise, in the cloud, or a hybrid of the two. The MQTT Engine module located on an Ignition Gateway can subscribe to any data published from the broker, this data can be use in any Ignition application.