What are the differences between the ECI850 and the ACE850 modules for the Sepam Relay?

Title
What are the differences between the ECI850 and the ACE850 module for the Sepam Relay?

Issue
It is not clear which module offers which benefits.

Product Line
Sepam 20, 40, 60, 80
ECI850 Module
ACE850 Module

Environment
Sepam Modules

Cause
User would like to know which module is best for their desired operation.

Resolution

ECI850:
1. Compatible with the whole range of Sepam
2. Ability to upgrade existing Sepam units to ensure the durability of your assists
3. Ability to connect up to 5 Sepam 20, 3 Sepam 40 or 2 Sepam 60 or 80 units to one ECI850, ensuring a cost effective solution
4. IEC61850 logical nodes and configurable data sets to fit the needs of your SCADA system
5. High performance because the ECI850 is not a generic gateway but a data server dedicated to the Sepam
6. Sepam 80 must have firmware 3.00 or above, Sepam 60 must have firmware 1.00 or above, Sepam 40 must have firmware 3.00 or above, Sepam 20 must have firmware 0526 or above
7. Must have a modbus module for the relay

ACE850:
1. May be used with the Sepam 40, 60 and 80 only.
2. Sepam 80 must have firmware 6.00 or above, Sepam 60 must have firmware 7.00 or above, Sepam 40 must have firmware 7.00 or above
3. IEC61850 logical nodes and configurable data sets to fit the needs of your SCADA system
4. Goose messaging capabilities.
5. Peer-to-peer communication capabilities on Sepam series 80 with Goose messages to enhance your protection and control system without additional wiring.
6. Do not need a modbus module for communications
7. TCP/IP option ref 59754 is mandatory to use ACE850 with Sepam