Toshiba V Series User Manual page 26

Chapter 1 Ethernet Module (EN311) Overview
1
6
(3) Socket interface support
This is a standard communications technique used on engineering workstations
(EWS) and similar computers. Transmission between user programs on the S
controller and host machines is possible using the socket interface.
There are eight sockets on an EN311 and the transmission protocol (TCP/IP or UDP/
IP) can be specified for each socket.
TCP/IP: Transmission Control Protocol/Internet Protocol
UDP/IP: User Datagram Protocol/Internet Protocol
Application
program
Socket
Host machine
PC
Workstation
Data transmission
Figure 1-4 Socket Interface
10BASE5
/10BASE2
EN311
Socket
S controller
User program
Ethernet module User's Manual