Prosoft PLX31-EIP-MBTCP Configuration with Control Logix

[Mahmoud shahien]

Hi Experts,
Sorry as I am new in working with Allen Bradlly platform & Modbus Communication .
I have a redundant system ( Control Logix 1756-L74) which uses prosoft PLX31-EIP-MBTCP gateway in order to gather data from various devices & control panels in my system.
The devices are modbus TCP and control logix is Ethernet/IP.
When I studied the manuals of prosoft , I'm so confused about configuration of it & get stuck in many issues .
that if I want to make Communication between control logix( Ethernet IP) & Eg. Energy Meter in the system ( Modbus-EIP-TCP)
Which configuration should I do???
As I saw many configurations in prosoft configuration builder (EG.: EIP Class3 server, Class1 connection, EIP class3 client, MBTCP client1,.............)
and what are the communication data should I ask various vendors in the system.
Please Guide & help me.
Thanks.