MQTT Archives - Maple Systems

How do I address multiple devices using the Modbus TCP/IP Gateway function?

To address multiple devices, using the Modbus TCP/IP Gateway function: 1. Select the table for the mapped device. 2. Click the “Settings…” button at the bottom of the Address Mapping Table window. 3. Specify the mapped device address in the Table Settings window. Follow Technical Note 5099 “Using the Modbus Gateway” for step-by-step instructions.

How can I subscribe to topics using Sparkplug B MQTT?

I understand you’re trying to enable bidirectional communication from the Ignition Gateway to your HMI (similar to a “subscribe” function). As you may have seen, Subscribe doesn’t work the same way here with Sparkplug. I’ve attached our Guide regarding the setup for Ignition. Please see page 20 regarding enabling writes from the Ignition Gateway to…

What is an MQTT broker?

A fundamental advantage of MQTT is that data is sent to a central “broker” (aka server) instead of being directly transmitted to multiple clients such as remote interfaces or management software. The MQTT broker is responsible for maintaining client connections and sending/receiving messages. Client devices, edge gateways, and IT applications (or publishers/subscribers in MQTT language),…

What is the Internet of Things (IoT)?

The Internet of things (IoT) is the network of physical devices, vehicles, home appliances, and other items embedded with electronics, software, sensors, actuators, and connectivity which enables these things to connect, collect and exchange data.

What is an Edge Gateway (EG)?

In automation systems a gateway is a protocol translator. In the IIoT, protocol translators are referred to as “Edge Gateways” because they are at the ‘edge’ of the widely distributed network of devices creating and consuming data.

What is the Industrial Internet of Things (IIoT)? Or Industrial Internet?

This is the interconnection of automated systems (operational technology) and information technology. A distributed network of devices generating, transmitting, and consuming data for status, analysis, or statistical purposes.

What is JavaScript Object Notation (JSON)?

In computing, JavaScript Object Notation (JSON) is an open-standard file format that uses human-readable text to transmit data objects consisting of attribute–value pairs and array data types (or any other serializable value).

What is Industry 4.0 in simple terms?

Industry 4.0 represents the fourth industrial revolution, characterized by the integration of cyber-physical systems that enable intelligent, interconnected manufacturing environments capable of autonomous operation and real-time decision-making. This paradigm shift encompasses the convergence of physical production infrastructure with advanced digital technologies, including the Internet of Things (IoT), artificial intelligence (AI), and big data analytics, fundamentally…

What is Message Queuing Telemetry Transport ( MQTT)?

MQTT stands for Message Queuing Telemetry Transport. It is an extremely simple and lightweight publish/subscribe messaging protocol, designed for constrained devices and low-bandwidth, high-latency, or unreliable networks. The design principles are to minimize network bandwidth and device resource requirements while also attempting to ensure reliability and some degree of assurance of delivery. These principles make…

What is Smart Automation?

A machine, or system, with integrated electronics or computer control that has some level of self-awareness and self-regulation.

Define MQTT Publisher (aka Server or Edge Device)

Any device creating data for transmission to a broker such as sensors, PLCs, and HMIs. A fundamental advantage of MQTT is that data is sent to a central “broker” instead of being directly transmitted to multiple clients such as remote interfaces or management software. The MQTT broker is responsible for maintaining client connections and sending/receiving…

FAQ Tag: MQTT