I just completed a project to remove a S6 processor off of a machine. In our application we have removed all the S6 IO and the only thing we have left is our GE DMC drive controller, which has the S6 C-bus interface on it. We are using the PIO card to interface with the C-bus using the SCAN c-block provide. In your application you need to know if you have you remote racks setup for advanced IO, because you will need to enable that on the scan block. Also, if you have Analog IN/OUT cards, you will have to call two separate c-blocks for those functions as well. You can email me at michael.william.mcdonald@gmail.com if you still need some more help with this. I have a few things that might help. -Michael