Jack,
The manifolds you are looking to hook up, are they using EIP, Control Net, Device net? And are you trying to use the same valves? We use Parker valves and just completed a project using EIP as our connection using the H-Series valves with a PSSCENA as the field bus connection. With Allen Bradley all we had to do was install the EDS file then set the chassis size and we were done. The Micro Series of manifolds can be daisy chained together as well if you need to really get the valve count up. I have the PDF's for 4 of the connections they use with that series. I'm not sure what the max size is but i'm pretty sure its at least 3/4 NPT.
E103P-R3 - ISYSNET CONTROLNET ADAPTER INSTRUCTION SHEET.pdf
E104P-R3 - ISYSNET ETHERNET IP ADAPTER INSTRUCTION SHEET.pdf
E101P-R3 - ISYSNET DEVICENET ADAPTER INSTRUCTION SHEET.pdf
E102P-R4 - ISYSNET PROFIBUS ADAPTER INSTRUCTION SHEET.pdf
