NX-ERA unleashes the power of IIot with MQTT Interface
                     NX-ERA UNLEASHES THE POWER OF IIOT 
WITH MQTT INTERFACE
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What is IIoT?
The industrial internet of things (IIoT) 
sometimes called Industry 4.0 – is 
radically changing how businesses, 
especially industrial companies, operate.
 
Let’s begin with a short IIoT definition: 
The Industrial Internet of Things (IIoT) 
refers to the vast number of machines 
and devices – or ‘things’ – a business 
uses that are now connected to the 
Internet. Protecting this critical 
operational data, secure IIoT forms a 
closed, private Internet network where 
the devices can communicate and share 
data with other people, systems, and 
things. This data can be used to improve 
existing work practices and business 
processes as well as creating entirely 
new ways of doing things.
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Benefits of IIoT Enhanced
Increased
Improved customer
As IIoT devices become smaller, cheaper and smarter, productivity Cost Reduceoperational experience
they can be applied almost everywhere. The data they reduction wasteefficiency
create can be turned into actionable insight that delivers 
incredible business benefits including:
Improved operational efficiency Cost reduction
Industrial IoT software allows you to create Deploying IIoT offers large cost saving benefits for organizations. For 
environments of connected assets that bring a wide example,  industrial IoT devices can save dramatically on energy bills – 
range of operational efficiency benefits. Sensors by as much as 70% on lighting and 30% on air-conditioning, according to 
located in production systems, assembly lines, some estimates.
warehouses and vehicles produce data that helps  
managers monitor exactly how an asset is performing Enhanced customer experience
and address issues before they arise. By placing industrial IoT sensors within products, manufacturers are able 
  to capture and analyze data on how customers actually use their 
Increased productivity products – enabling them to improve future product upgrades and 
Industrial IoT solutions provide real-time information releases.
on the performance of equipment and people to help  
streamline and improve business processes and Reduce waste
workflows. Inventory management is one of the most important benefits of IIoT 
software. By attaching IIoT devices to products, warehouses and vehicles 
you can make the entire supply chain process more effective, reducing 
the need for excess inventory and the potential for stock-outs.
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Challenges of IIoT
Many organizations have been attracted by the benefits Data Privacy
of industrial internet of things but realizing those benefits As more and more devices are connected to the 
is not straightforward. There are many industrial IoT Internet, concerns surrounding how personal and 
challenges to overcome before an organization can sensitive data are captured, transmitted and stored 
institute a successful IIoT program. These include: also grow. The value of IIoT lies in the ability to 
access, integrate, and analyze this data while 
Industrial IoT Security maintaining data privacy.
Security is one the biggest challenges for IIoT adoption. 
Many devices are collecting extremely sensitive data but, Industrial IoT Standards
in many cases, the devices have been designed with little Standards lie at the heart of the development and 
thought to security. Industrial IoT security must ensure adoption of IIoT. Today, there are many IIoT standards 
that the identity of every person, system and thing on the but little standardization. For example, IIoT devices 
network is properly managed and detected. use a variety of methods to connect and share data, 
including LTE, LP-WAN, wi-fi, Bluetooth, satellite and 
even Ethernet when connected directly to a network.
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Challenges of IIoT
Data Management Range of IIoT Devices
Handling the volume and velocity of data being created by industrial IIoT has many different components and 
IoT devices is a significant challenge for every organization. All this there are many different types of industrial 
IIoT data must be collected, stored and analyzed before it can be IoT devices. Typically, industrial IoT device 
turned into actionable insight that can drive improved decision- examples include sensors, actuators, tags, 
making. beacons and receivers. When creating an 
IIoT network, all these devices have to be 
Deployment Models effectively and securely integrated to 
According to PTC, 62% of IIoT deployments are on-premise, while 38% derive the full value of your IIoT 
are in the cloud. The vast amounts of IIoT data being created places investments.
greater pressure on delivering flexible and scalable capacity. For 
industrial IoT, a cloud deployment offers performance and security 
gains over on-premise solutions. Hybrid industrial IoT cloud 
deployment – splitting processing between internal systems and the 
cloud – is a fast-growing deployment model for many businesses.
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IIoT Protocol
Of the many different protocols Message Queue 
Telemetry Transport (MQTT) complements all the 
necessities of IoT. With a view to meet the Industry 4.0 
demands, Messung now offers NX-ERA, the complete 
industrial automation solution to connect your 
business to IoT universe. All of our NX-ERA products 
now support MQTT.
When updating the firmware of the PLC to the latest 
version and using MasterTool IEC XE version 3.20, all 
the NX-ERA PLCs could make your business closer to 
Industry 4.0.
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Why MQTT?
It is a lightweight message protocol that is based on 
subscription-publishing model and requires low 
bandwidth. E.g.: Facebook uses MQTT for its 
messenger product on mobile platform, to ensure 
usage of this application is minimized.
• This model follows/defines two entities in the 
network: the broker (also called server) and the 
clients.
• Using our MasterTool programmer, the user will 
be able to transform our PLC into a client, 
thereby allowing from a simple TCP / IP 
connection to a secure connection based on TLS 
certificates.
MQTT is a high-level architecture and consists of 
two main parts (Broker & Clients)
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Broker
• As can be seen, this protocol does 
not require synchronization 
between the parties involved, as 
the broker is responsible for 
ensuring the delivery of published 
messages.
• So, broker helps to sort the 
information and better manage 
the messages.
• Types of brokers available are 
Eclipse IoT Mosquito, Active MQ, 
Hive MQ etc.
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Clients:
• Clients are any devices (PLC in our case) which 
interact with broker; either publishing messages or 
subscribing to a topic.
• Topics are the routes where messages are published 
within a broker.  
• When PLC publishes message to the broker; and 
broker forwards this message to subscribers avoiding 
point-to-point connections between subscribers and 
publishers.
• When broker (server) publishes any message, then 
PLC (client) acts as a subscriber.
• MQTT supports TLS (Transport Security Level) for 
secure connection between client & server. 
Communication between client and server is 
established via TCP connection or an encrypted TLS 
connection for secure messages.
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Web Service 
Tools
• Any web service tool could be used as a programming platform for 
intuitive and straightforward integration between smart devices, 
PLCs and brokers. Node-Red is an example of the web server tool.
• If we write or publish a message from Node-Red, this published 
message will be received by broker first. If PLC is subscribed to this 
message under any topic, then it will receive the message from 
the broker.
• Thus, it is possible to communicate with different cloud platforms, 
such as Node-RED®, where it is possible to create supervision 
diagrams for an entire system, including different devices.
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Screen Display on Mobile/Terminal/Tablet through Cloud 
Platform/Local Server  
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Typical 
Architecture
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CASE STUDY
Our customer is an Automotive Ancillary Manufacturing company having a huge installed 
base of PLCs (of different make) in their premises being utilized for varied applications 
including Robotic Cells.
Customer Requirement 
Application: Robot Line Welding Machine
The customer wanted his PRODUCTION data and some critical alarms to be monitored on 
Web Visualisation tool and to collect the data centrally in a local Server. Also to be energy 
efficient, the customer wanted to monitor energy consumed at each stage of the 
production line.
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Proposed Solution:
Since the existing PLC does not support Industry 4.0 compatibility, Messung 
suggested a cost effective solution to retrofit the PLC with latest 
NX-ERA XPRESS PLC which has integrated multiple protocol communication 
including MQTT & OPC UA protocols.
To take care of Energy Management System, energy meters were installed 
with Modbus RTU communication facility. The NX-ERA XPRESS PLC gathered 
the data from the energy meters on integrated MODBUS Protocol (inbuilt 
RS485 port). Moreover the data was compiled and sent to the Customer 
Server.
The application was developed, panel rewired and monitored within an hour. 
What's more, this task was accomplished during the break, so it helped to 
reduce machine downtime. 
The data was taken on TCP/IP port to the Customer Server on MQTT with 
broker running on the same.
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Production Management 
Solution: 
Monitoring & Data Recording
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Conclusion
Messung NX-ERA PLCs for Industrial Automation have opened new doors to ever increasing demands 
for Internet of Things by introducing MQTT, where the users can operate, make analysis and even 
save on their existing sensors, devices or even machines.
With Messung's smart factory automation & control solutions, users can check, monitor and even 
control some of the critical functionalities of any machine in the plant at their fingertips on their 
interactive devices based on operating systems like MAC OS, Windows, IOS or Androids.
As proven automation experts and leading PLC supplier in India, Messung has in-depth understanding 
of industrial machinery, production processes and practical implementation of technology, 
complemented by a strong team of experienced engineers with tried and tested execution 
methodology. 
A pioneering industrial automation & control systems supplier and provider of 
machine automation & control solutions for four decades, you can trust Messung's cutting-edge 
industrial automation & control solutions with IIoT can transform operations and efficiencies across 
wthwew .smhoesps fluonogra.u tomation.co.in
THANK YOU
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MESSUNG SYSTEMS PVT. LTD.
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+91 20 6649 2800 | [email protected]
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