Software Toolbox Technical Blog

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What's "It"?  The "it" can mean a lot of things. What we mean is solving software and information integration challenges the way YOU want to solve them, and not being totally limited by the fill in the blank configuration settings in software. 

Whether you are a system integrator or a sophisticated user, you know there are times where fill-in-the form software configuration makes things easy, but can also constrain you.  Whether it's scability of large configurations, enhancing existing product features to satisfy YOUR NEEDS, or even adding functionality to a product, you don't like being limited by fill-in-the blank software.  

The most powerful functionality of the Cogent DataHub is its balance between fill-in the blank quick configuration for most users, and the freedom to "Get it YOUR WAY" for others.  Cogent DataHub does this through the free scripting engine that is included in every license. 

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Redundancy can mean a lot of things, as discussed in our Demystifying Redundancy Blog post.  In this blog post we want to focus more specifically on one of the use cases in that blog post:  managing redundant OPC servers.  Just having two OPC servers talking to your PLC’s does not make them redundant.  Most OPC Servers don’t have built-in methods of knowing there is another redundant OPC server instance out there.

Some HMI/SCADA systems support redundancy but sometimes it involves scripting and other custom written code.   So, in many cases, you need supplemental software to manage and optimize the connections to your two OPC servers.  Your OPC client then talks to the redundancy management software as if it is the actual OPC server.

This blog post covers some of the considerations and watch outs when choosing how to manage your OPC server redundancy.  After that we will also discuss how the Cogent DataHub can help manage your redundancy to provide high availability for your OPC server communications.

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In the automation and control world you need to know about problems immediately.  If problems are not recognized early enough, they can cause unexpected downtime, damage to machinery or environmental impacts.  In other words, these problems can cost you a lot of money.

Fortunately, these days most of us have 24/7 access to email or texting through their laptops and smart phones which has made receiving alarms in a timely fashion much easier than in the past.

In this third post of our “I Can Do That?” blog series, we’ll cover how to get alerts to problems ASAP and also share some specific use cases for email/SMS notifications using Cogent DataHub.

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Do you need to directly connect data points or variables in different equipment, processes, or software? This concept is commonly referred to as ‘point-to-point bridging,’ and the DataHub bridging capability allows multiple data sources to communicate with each other in real time.

In this second post of our “I Can Do That?” blog series, we’ll help users like you get the most out of your DataHub by understanding the bridging feature in detail and how this feature can often be combined with other features to accomplish some very powerful automation tasks.

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OPC has been around as an industry standard since 1996.  If you’ve been working in the space very long, you have probably heard all the different acronyms thrown around.  If you’re new, well there are different specifications in the OPC software interoperability standards that are used to meet different information integration needs.

In this first post of our “I Can Do That?” blog series, I’ll explore examples of the connections between different OPC standards we hear about from users, ways to address them using OPC Gateway software, and use cases highlighting solutions we’ve seen other users implement successfully.

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With the release of Cogent DataHub Version 8, we have had a lot of interest in new USB camera support functionality. The following short video blog demonstrates step-by-step just how easy it is use the Cogent DataHub to establish a connection to a USB Camera and then securely tunnel that data to another computer and then create a DataHub WebView page that will allow you to view the camera image and control the camera remotely.

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With the release of Cogent DataHub Version 8, we have had a lot of interest in OPC UA connectivity. The following short video blog demonstrates step-by-step just how easy it is to make an OPC UA connection between two DataHub nodes while also demonstrating how to manage security certificates in DataHub when making OPC UA connections.

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By now, I’m sure you’re aware of the Cogent DataHub v8 release.  Since announcing the release date, we have had many good questions from existing users like you.

This blog post will address the most common questions we have received and provide the answers you need to plan your DataHub V8 migration.