I need to create a industrial monitoring application that shows the operator a SCADA diagram, similar to this
alt text http://img32.imageshack.us/img32/631/processcontrol.png
What toolkits are available to do this and what experience have people have with them? I already know of the ilog tookit but have no experience of it.
Edit: I don't need software to control the hardware itself, I just need to create the GUI or diagrams that show the current status of the process.
I have done this before in the past, but my implementation was entirely from scratch using vector graphics libraries. I would not recommend this path unless you wish to unnecessarily punish yourself. If your going to though, I used this library:
Here is what I would recommend (note: I have not tried any of these):
http://www.kineticart.co.uk/Downloads.html
http://www.blocks4.net/Products/_net_scada_framework/ProductDetails.aspx
I believe that your best bet would be the opc systems. From what I can find they seem to be the most well rounded library.
Hope this helps.