Panasonic FP2 ET-LAN Technical Manual page 108

Note:
Because the reliability of communication cannot be assured with UDP/IP, we recommend using TCP/IP.
-
We recommend specifying a port number of 8000 (1F40) or higher.
-
Specify a MEWTOCOL station number within a range of 1 to 64, choosing a number that does not
-
duplicate any other station number on the same network (subnetwork).
When using the Active open mode, if the partner node has no ARP function, specify the Ethernet
-
address of the partner node for "DTn+6 to DTn+8".
8-6