HEATKEYS

The international forum for control engineers, system integrators, and industrial automation professionals.

Visual Basic Discussions plus .NET, C#, game programming, and more (http://www.VBForums.com)

Modbus RTU, Modbus ASCII, MODBUS/TCP library and driver for multiple platforms including .NET, Linux, Windows, Windows CE, QNX, Java, Delphi, Solaris and UNIX.

YouTube is a place to discover, watch, upload and share videos.

Web Development and Programming Help Community. Browse forums, snippets, and tutorials. Get help from experts in C++, PHP, Visual Basic, HTML, CSS, JavaScript, Java, .NET, and more!

OPC PLC controls and communications, VB HMI User interface, OPC, OPC Servers, OPC client controls, PLC, VB.Net, PLC Comm, Modbus , ActiveX, controls, Visual Basic, SLC 5/05, SLC 500, DH+, DF1, AB, Allen Bradley, PLC, Industrial computer, serial PLC

Resources for developers in C, C++, C#, .Net, Visual Basic, Java, Ruby, PHP, Perl, Python and more. Featuring forums, tens of thousands of resources, blogs, jobs and more!

Siemens is the world’s single-source leader of automation technology products for all industrial sectors. Learn more about our unique range of products and systems.

Experts Exchange enables people with technology problems to quickly and easily solve their problems by collaborating with experts from around the world.

Modbus software for testing RTU/ASCII slaves