tti_vaske

@chanteclerJust curious where you obtained that spreadsheet?  Is it updated regularly?  It looks like it could be very useful.

Let me start by giving my background of Modbus ---- NONE!!!!!! My customer's plant is entirely AB. We are in the process of putting in a new production line, which includes a new spiral freezer. The freezer is controlled a Compact Logix L42. The compressors and chillers are all controlled by proprietary micro processors, which are capable of talking Modbus-TCP. The customer would like the alarms for the Micro processors to be integrated into the plants building control/utilities HMI, which is an RSView32 application. The Compact Logix will be on the same Ethernet network as the RSView application, so I am planning on using that to transfer the data. I have purchased the following card from Prosoft. http://prosoft-technology.com/content/view/full/6458 From what I have read on this module, it should work for my application. My question pertains to the network infrastructure. Does Modbus TCP require any special hardware or wiring, or is it very similar to AB's Ethernet/IP? Do I need a managed switch, or will any switch work? Does CAT6-E work for media? My network will consist of the Prosoft card and 4 micro processors. I am planning on setting this up as its own network, keeping it segregated from my Ethernet/IP network. Any advice will be greatly appreciated.