Introduction

This document describes the importance of the MQTT Client application and its purpose in the GE Vernova Proficy product suite. The MQTT Client application can be installed along with the SCADA products using the CIMPLICITY Proficy installer.

Data published from devices such as sensors, units, and other PLCs, is consumed by the MQTT clients. For better communication and interoperability of the SCADA products with MQTT data, we need to support the MQTT protocol. Data received by the MQTT Client is translated to OPC UA data. The translated data is then used by the SCADA products to visualize and monitor the data. This allows you to leverage the advantages of both the MQTT and OPC UA protocols.

The MQTT Client establishes a connection with the MQTT broker and subscribes to the data published on various topics. The published data received through the MQTT Client is then translated into OPC UA data. The OPC UA clients in products such as iFIX, CIMPLICITY, Operations Hub, and so on can connect to the OPC UA server and subscribe to the data.

All the SCADA products at GE Vernova can now leverage this application to handle and support MQTT data received from the Client applications.

MQTT in Configuration Hub helps you to configure the MQTT Client and OPC UA Server.

Prerequisites

Ensure that you have already installed CIMPLICITY 2024, Configuration Hub 2024 and Proficy Authentication 2024 or upgraded them to 2024.

What to do next:

  1. Install MQTT client. You can install the MQTT Client using the CIMPLICITY Proficy Installer. For more information on installing MQTT client, refer to https://www.ge.com/digital/documentation/mqtt/version2024/t_mqtt_install_time_registration.html.
  2. To access MQTT devices in Configuration Hub using the CIMPLICITY plug-in, you must register the MQTT client with the Proficy Authentication and Configuration Hub server with which your CIMPLICITY plug-in is registered. For more information on registering MQTT client with Proficy Authentication and Configuration Hub, refer to https://www.ge.com/digital/documentation/mqtt/version2024/c_mqtt_overview_central_registration_and_install_time_registration.html.
  3. Configure the MQTT client in Configuration Hub. For more information, refer to https://www.ge.com/digital/documentation/confighub/version2024/mqtt/g_mqtt_guide_mqtt_in_configuration_hub_mqtt_client_configuration.html.

For other management processes like changing admin credentials, port changes, and configuring OPC UA settings, refer to the MQTT Client documentation in the Configuration Hub documentation at https://www.ge.com/digital/documentation/confighub/.