HEATKEYS

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

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

Modbus software for testing RTU/ASCII slaves

MODBUS

Codeguru is where developers can come to share ideas, articles, questions, answers, tips, tricks, comments, downloads, and so much more related to programming in areas including C++, Visual C++, C#, Visual Basic, ASP, ASP.NET, Java, and more.

Modbus Software Components.

Free source code and tutorials for Software developers and Architects.; Updated: 7 Nov 2012

Acromag manufactures measurement and control products for process instrumentation and embedded computing. They offer industrial I/O solutions for distributed control networks and single board computer bus systems.

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

Serial Communication Library for Windows. Serial port I/O for Windows. Library supporting Serial Port communications and file transfer Protocol with zmodem for Windows. Serial Port Communication Components for C/C+. Serial Communication Library for C...

Automated Solutions offers OPC Servers, runtime-free ActiveX controls, and .NET components for SCADA and HMI applications. Support for major PLC brands: Allen Bradley GE Modicon Square D Modbus and Automation Direct

A blog about SCADA with WPF and C#, PLC tips and tricks, PLC Simulators etc...

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory