DataHub WebView™

Create and view HMI screens from any web browser

DataHub WebView is a Silverlight application running in your web browser, allowing you to access your data from anywhere on the Internet. Drag and drop desktop-quality graphics to build HMI screen right inside your browser. No need to install costly development systems – everything is hosted and driven by the Cogent DataHub running on one of your own network computers. Zero-deployment lets your users see your graphics as soon as they are created.

DataHub WebView diagram

Unlimited data and client connections

When you purchase a WebView license you get unlimited data connections and unlimited web client connections. No need to worry about paying more to add more data points and no chance you’ll be locked out because your web client licenses are being used by other users. One low price gets you unlimited connections, simple as that.

WebView screen capture

Benefits of browser-based HMI development

  • You can edit screens for anywhere. Just open your web browser, type the address of your DataHub web server, login to the system and based on your access permissions, you can build, edit and view WebView screens from anywhere with network/Internet access.
  • No coding required. Build all your screens using the powerful built-in graphical environment. Complete point and click freedom, with no code in sight.
  • No development system required. You do not need to install a development system on your computer in order to build WebView screens. The development interface is provided to you, in your browser, by the web server. No compiler necessary.
  • No deployment required. Because the screens you build in WebView are saved on the web server, you never have to deploy your changes to other users. When you are editing a page and you want to show your colleagues, you simply save your changes, and tell your team to reload the page in their browser. No deployment, no complicated file updates.
  • Collaborate on development. With no limit to the number of users accessing the system, you can have a team of developers building pages at the same time. Depending on the permissions you give to your team members you can have them edit everyone pages, or restrict access so they can only edit the pages they build.
  • You can build entire multipage HMI applications with hyperlinks between pages, just like a web site or standard HMI system.
  • Security at every level. The permissions based security model allows you to define very precise privileges to each user. You can define certain users to have read only access, while other can view and make changes but not access the development interface. In WebView, the security model was one of the fundamental primary requirements, not an afterthought.
  • WebView’s powerful property binding feature allows for you to specify sophisticated graphical interactions between controls. Property binding allows you to associate the input values for one control, with the properties of other controls. It sounds complicated, but it really isn’t. All you need to know is, it saves you time and add significant power to your WebView screen.
  • DataHub WebView is based on Microsoft Silverlight, which means it is a leading web technology that is widely supported by all the popular browsers. Silverlight allows us to produce browser based applications that are every bit as feature rich and powerful as desktop based applications and they leverage the new opportunities offered by remote development and web based presentation.
  • DataHub WebView has a standard set of built-in controls, such as trends, gauges and sliders. In addition, WebView also ships with a complete set of Symbol Factory™ symbols, which offer thousands of industry standard symbols for a variety of industries. DataHub WebView is able to provide these and other future third party symbols.

These products support WebView

Product Code Features
DataHub UA WebView DHWVUA * OPC UA, Tunnel/Mirror, WebView, Web Server, Historian
DataHub DA WebView DHWV * OPC DA, Tunnel/Mirror, WebView, Web Server, Historian
DataHub WebView** ADDWV Tunnel/Mirror, WebView, Web Server, Historian

* Includes Aggregation, Scripting, QuickTrend, and Security
** Available as an add-on feature