controlcraft

Hi Satheesh, To answer your question, Rockwell has partnered with Wind River and uses their RTOS, VxWorks, in its products. I think that does matter very much when it comes to the credibility of the design. Rockwell is not trying to reinvent the wheel. This may not directly affect anything you need to do with a Rockwell PLC, but when people complain about using a PLC instead of PC-based control it helps to know a little more about the platform. A Rockwell PLC in its current form is really a specialized firmware and hardware package with a general purpose RTOS. The old ideas of what a PLC were are sometimes stuck in the heads of many who aren't up to date. ControlLogix has the greatest IO, memory and processing capacity of the Rockwell offerings. CompactLogix has a reduced footprint, price, and scalability. Good luck, Lindsey Eastburn