Socketserver Architecture - Comtrol DeviceMaster LT User Manual

SocketServer Architecture

SocketServer
Architecture
42 - Socket Port Configuration
TCP/IP socket mode operation is used to connect serial devices with an
application that supports TCP/IP socket communications addressing.
PC or
Mainframe
Ethernet Hub
IP socket
application
Serial tunneling mode is used to establish a socket connection between two
DeviceMaster LTs through an Ethernet network.
DeviceMaster
Ethernet Hub
UDP mode is designed for applications that need faster data transmission, or that
make use of UDP's broadcast capabilities. UDP differs from TCP in that a UDP
transmission does not first require a connection to be opened before sending data
and the receiving device does not issue acknowledgements to the sender.
UDP Mode
Ethernet Hub
LAN/WAN
Ethernet Hub
Ethernet Hub
LAN/WAN
TCP/IP Socket Mode
Dumb Terminal
LAN/WAN
Serial Tunneling Mode
1 2 3 4
Serial RS-232 connections
DeviceMaster
DeviceMaster
Serial Device
DeviceMaster LT User Guide: 2000586 Rev. B
DeviceMaster
Serial Device
DeviceMaster
Ethernet Hub
Printer
In this example, four
PCs receive data
simultaneously from one
serial device.