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Edge appliance with MQTT and OPC-UA drivers

   

Edge appliance with MQTT and OPC-UA drivers

Opto 22 announces a new version of groov, embedding key IIoT technologies MQTT and OPC-UA drivers directly into its industrial edge appliance. Added to the groov View software for web and mobile visualization, and the open-source Node-RED development environment, the new release offers engineers, technicians, and developers a comprehensive set of tools for edge deployment in industrial environments.

These new embedded capabilities are made possible through forging close partnerships with technology providers Inductive Automation and Cirrus Link Solutions, and are part of the Ignition Edge Onboard program. “Partnering is vital to provide everything required for a given IIoT implementation,” said Benson Hougland, Opto 22 VP of Marketing and Product Strategy. “With Inductive Automation and Cirrus Link, we’ve combined proven applications into a single, industrially hardened appliance to address today’s application needs. Visualization, data handling, security, and connectivity are all in one compact box.

A typical use case for the new groov edge appliance is gathering data from plant floor devices or from remote plants. A customer places groov near a machine or process, uses the built-in drivers to connect to existing control systems, analyzes the data, and publishes the results back to a central server or broker on premises or in the cloud. Applications like Ignition Enterprise or any MQTT/Sparkplug-compliant software can subscribe to the data. This scenario eliminates complex networking architectures like VPNs, firewall configurations, and remote desktop software, because all communications to the broker use a secure outbound connection from control systems, whether publishing data or subscribing to it. Additionally, because groov is a complete computing appliance, a PC is not required.

Ignition Edge in the groov appliance includes both a built-in OPC UA server and MQTT module. The built-in OPC UA server includes drivers to popular PLC brands, including Rockwell Automation Allen-Bradley PLCs, Siemens S7 PLCs, and Modbus TCP devices. Other drivers are available at additional cost. Embedding these drivers and OPC UA at the edge eliminates the cost and complexity of commissioning and maintaining a Microsoft Windows-based computer for translating PLC and device data to OPC UA, the only method available until now.

MQTT is a bi-directional, lightweight event- and message-oriented transport protocol with a publish/subscribe architecture. This architecture decouples devices from applications, allowing users to reduce reliance on traditional IT networking resources. MQTT’s pub/sub architecture also reduces network traffic, because data is published and sent only when it changes. Supported over the MQTT transport is Sparkplug, a freely available, MQTT-based payload definition for industrial applications, which greatly simplifies implementation by defining topic namespaces and payload, and managing the state of devices in the field.

groov.com



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