Turn Visual Studio into a powerful HMI/SCADA development package by simply dragging and dropping, no coding required. DF1, Ethernet/IP for Allen Bradley PLC controllers, and many more drivers. Free
Pure .NET driver for reading/writing values in a remote TwinCAT system. This driver includes automatic router registration allowing deployment without configuring either system.
Examples for Beckhoff TwinCAT Developers. See also the TwinCAT Forum group on LinkedIn: http://www.linkedin.com/groups?mostPopular=&gid=1860933 - For example code click on the Files or Develop tab