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

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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

libmodbus is a free software library to send/receive data with a device which respects the Modbus protocol.

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

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

Allen-Bradley, Modbus, GE-Fanuc INGEAR PLC ActiveX OCX, Visual Studio .NET, OPC Server, Dashboard Instrumentation and Graphics tools for Allen-Bradley, MODBUS, GE FANUC and OMRON programmable logic and automation controllers.