Panasonic FP2 ET-LAN Technical Manual page 274

Connection information setting area (Bank 0)
Offset Name
address
0 Setting area for
application being
used (connections
1 to 8)
15-12
Default Set value and explanation
0000H [Set value] 1-word data that sets the communication conditions for
the various connections as bit information.
(a) Communication method
Specify whether the communication method for each connection is
TCP/IP or UDP/IP. When using the data transfer function, always set
TCP/IP.
(b) Opening method
This is valid only when TCP/IP was specified as the communication
method.
Active open: Connection is actively established.
Fullpassive open: System waits for reception from a specified partner
node in order to establish a connection.
Unpassive open: System waits for reception from an unspecified
partner node in order to establish a connection.
(c) Application in which connection is used
When using computer linking or data transfer, set "0: MEWTOCOL
communication".
When using transparent communication, set "1: Transparent
communication".