Here is the product page with the manuals and all of the downloads you will need:
You will need to download the 2 AB Config Manager programs (the DeviceNet one is just NetTool), the AB Transport Provider, and the EDS file. Then follow the Application Notes and the Network Guide for the DeviceNet Scanner to set up the DeviceNet side. You will be able to do this with just the USB cable.
Then you can move on to the Modbus side.
Please let me know if you have any questions. You can reply directly to this email.