Here we have described various applications for Digital Control, Monitoring and Control.
Wiesemann & Theis is one of the leaders in this field and offers unique quality products for automation solutions via Ethernet.

Applications for Web-IO

20 Mar
Web-IO programming

Control and monitor Web-IO Digital with VB 2005 / 2008 / 2010

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As successors to MS Visual Basic and VB.Net there are now VB 2005 and 2008. They also offer everything needed for programming TCP/IP applications. This makes Visual Basic 2005 / 2008 a favorite tool for creating applications that communicate with the Web-IO Digital, especially since the Express version of VB 2008 was offered from Microsoft free for downloading. Additional drivers or DLLs are not needed.

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26 Feb
Web-IO programming

MQTT Web Client with JavaScript

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As individual interface for Web-IO

In this tutorial the JavaScript MQTT client from the Eclipse-Paho Project will be used to create an individual interface for the Web-IO 4.0 Digital. 

Here the states of the Web-IO are buffer stored as a retained message with the broker and represented by the Web client in a simple HTML table.
When one of the outputs is clicked on, the Web client sends an MQTT Publish which instructs the Web-IO to switch the corresponding output.

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31 Jan
Applications for Box to Box

Box-2-Box via MQTT with Web-IO 4.0

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This step-by-step manual explains the setup of Box-2-Box operation of the Web-IO 4.0 Digital via the Internet of Things. 
In Box-2-Box mode you connect two Web-IOs together so that switching signals present on the inputs of the one device are transmitted via MQTT to the outputs on the other device. The broker is CloudMQTT, a commercial, free provider for smaller applications.
To familiarize yourself with MQTT we recommend the page "Communication in the Internet of Things."

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