The number of TCP ports has been extended from 1 to 3

Function extension:
You can establish 3 parallel TCP connections with the Profinet module. Just as the 94xx Ethernet module, the Profinet module thus has 3 parallel TCP connections.

Contained in which products?
E94AYCER communication module FW 2.10 

Application:
The 3 TCP connections can be used by Lenze tools or the user. The GCI protocol used is described in the Lenze documentation.