Software Toolbox Technical Blog

Video Tutorial: Using DataHub Advanced MQTT Parsing

4 min read

By Win Worrall on Aug 25, 2022 2:00:00 PM


Cogent DataHub® is a gateway that enables a wide range of connectivity interfaces for different data sources such as OPC UA, OPC DA, ODBC, DDE and so much more.  Included in those available interfaces is the ability to act as both an MQTT client and broker even including Sparkplug B support for enabling MQTT integration with many other types of systems that don't natively support MQTT.

A key facet of the MQTT specification that can sometimes be complex for our users and cause issues with compatibility between DataHub and other MQTT clients and brokers is how to handle the formatting of MQTT messages. As you may or may not know, while MQTT does specify how to construct a message header for routing by an MQTT broker, it does NOT specify the actual message content. This tends to be a challenge when MQTT clients from different developers need to work together, since they need to be using the same format for the message content.

In this video blog, I'll show you how to use DataHub V10's Advanced MQTT Parser capability to specify flexible formats that will work with virtually any other vendor's MQTT clients and brokers.

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Enabling Rapid Interoperability Between OPC UA & MQTT Sparkplug B

5 min read

By Kevin Rutherford on Jul 21, 2022 2:00:00 PM


Ongoing digital transformation and operational visibility initiatives continue to demand the integration of different systems using different technologies. With increased adoption of secure OPC UA and MQTT Sparkplug B, it’s only to be expected that users will have systems that support one or the other technology but need to communicate with each other.

Although OPC UA supports a publish-subscribe mechanism with OPC UA PubSub, and adoption of OPC UA is strong and growing, the reality is there will be situations where the user is already using MQTT Sparkplug B and needs to integrate it with OPC UA or vice-versa, without writing custom code or going through complex configuration.

Software Toolbox was founded 26 years ago on the principal of making data and device integration easy by using configurable off-the-shelf software to avoiding writing custom solutions and knowing the pros and cons of and ins and outs of many technologies. That mission remains strong, as you’ll see, as we discuss interoperating between OPC UA and MQTT in this blog post.

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DCOM Hardening & Your Alternatives to Eliminate Security Risk & Stress

8 min read

By Kevin Rutherford on Jun 16, 2022 2:00:00 PM

If you’re reading this post, you’ve almost certainly at least heard of DCOM. And, possibly, you’re one of many who have struggled over the years with the trials of configuring remote OPC Classic connections between machines where DCOM inevitably increased your time and difficulty for what should be a relatively painless task.

And with the latest Microsoft hardening for DCOM authentication, configuring DCOM for the many existing OPC Classic solutions out there isn’t getting any easier. This blog post discusses alternatives to DCOM that cover a range of use cases depending on what software you already have installed and your existing system architecture.

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How to Easily Integrate Your OPC Router Data with Google Cloud IoT

10 min read

By Zachary Parham on Apr 14, 2022 2:00:00 PM


The Google Cloud Platform (GCP) is Google’s cloud solution that brings all of Google’s cloud computing services together. Google’s own services, such as Google Search and YouTube, run on the GCP, but end users can also use their cloud services.

Google Cloud Platform, for the Internet of Things (IoT) area, offers their “Cloud IoT Core” services, which provide the functionalities to connect large quantities of devices via an integrated MQTT broker. In this blog post, we will show the necessary steps for connecting this Cloud IoT Core to the different data interfaces supported by OPC Router.

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Top 6 Key Features in DataHub V10

8 min read

By Win Worrall on Jan 4, 2022 10:00:00 AM


Cogent DataHub is known for its extensive connectivity to OPC DA, OPC UA, OPC A&E, Databases, Excel, ODBC, DDE, Linux, Modbus.  The latest Version 10 release adds a huge amount of new or expanded functionality that further confirms our saying that "once the data is in DataHub, it can go anywhere".

In this blog post, I'll provide insight into key new features including support for OPC UA Alarms & Conditions, support for Sparkplug B for both the MQTT Client and Broker, support for reading and writing with multiple popular external historians and more. Not only will I cover what these new functionalities provide but how they can help you deliver secure, integrated connections within and between your plants, to the cloud and beyond, giving you the data and perspective you need to make critical decisions for your enterprise.

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How to Easily Integrate Your Data with Google Cloud IoT Core

11 min read

By Zachary Parham on Jul 8, 2021 2:00:00 PM


IoT, IIoT, MQTT, Connectivity of Things, Big Data, The Cloud - by now, you've heard these terms in some way, shape or form.  Perhaps you're working on a project requiring you to push and/or pull important process or business data to/from a cloud solution. Big data analytics applications ranging from predictive maintenance to "smart" manufacturing, amongst many other use cases, are becoming more and more common.

And Google© is a household name both in the private and professional world. Chances are, you got here using Google – whether through a Google search, or by using Google Chrome (or both). But did you know that Google has their own cloud solution called Google Cloud IoT Core©? Amongst many other things, Google Cloud IoT Core acts as an MQTT broker for storing and sharing important data in a secure cloud along with artificial intelligence and analytics and many other IoT services.

But how do you go from your data sources to Google Cloud IoT Core? In this second post in a series about connecting DataHub to IoT solutions (if you missed our first post on connecting to Amazon AWS IOT Core©, click here), we'll step through how you can configure Google Cloud IoT Core and connect it to your process and business data sources using the Cogent DataHub IoT Gateway©.

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How to Easily Integrate Your Data with Amazon AWS IoT Core

12 min read

By Kevin Rutherford on Feb 25, 2021 2:00:00 PM


IoT, IIoT, MQTT, Connectivity of Things, Big Data, The Cloud - I'm sure you've at least heard these terms in the course of your day (whether in the scope of your job or in an advertisement during a football game you happen to be watching).  Maybe you're even working on a project requiring you to push and/or pull important process or business data to/from a cloud solution - possibly for big data analytics applications ranging from predictive maintenance to "smart" manufacturing, amongst many other use cases.

And Amazon© - well, I'd wager there isn't a single person out there who doesn't know who Amazon is. But did you know they have their own cloud solution called Amazon IoT Core©? And maybe you didn't also know that Amazon AWS (Amazon Web Services©) IoT Core acts as an MQTT broker for storing and sharing important data in a secure cloud along with artificial intelligence and analytics and many other IoT services.

But how do you go from your data sources to AWS IoT Core? In this post, we'll step through how you can configure "things" in Amazon AWS IoT Core and connect them to your process and business data sources with the Cogent DataHub IoT Gateway©.

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How to Convert MQTT Client Data to OPC

2 min read

By Win Worrall on Sep 24, 2020 2:00:00 PM


As you may already be aware, the Cogent DataHub has a wide range of flexible connectivity options between different data sources such as MQTT, OPC UA, OPC DA, ODBC, DDE and so much more.  MQTT client and broker functionality in particular allow DataHub to integrate MQTT data sources with HMI, SCADA, MES, historian and other systems that don't natively support MQTT.

In this next installment of our Cogent DataHub Virtual Training series, we will cover step-by-step how to easily connect 3rd party MQTT clients to the DataHub MQTT broker and convert their data for access by your own systems with OPC UA or OPC DA client capabilities.

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