Chapter 7 Server Service - LS ELECTRIC XGT Series User Manual

Chapter 7 server service

Chapter 7 Server service
Server service is explained by XGT server, Modbus server, EtherNet / IP server, OPC UA server function.
7.1 XGT server
7.1.1 Overview
(1) Overview of the protocol
XGT server protocol is communication protocol between LS ELECTRIC Ethernet modules. Read / write is
available by using command and communication is available by using XGT server (dedicated) protocol from PC
and HMI. XGT server communication can be used in the TCP and UDP communication method.
(2) Frame structure
1) XGT Server Packet Structure Using Ethernet
XGT server protocol includes MAC, IP header, TCP header between LS ELECTRIC frame (including data)
required for Ethernet communication. The structure of the Ethernet communication frame is shown below.
MAC
2) Structure of the XGT server frame
The LS IS frame for data communication includes LSIS Co., Ltd.'s unique data (Company ID), command,
data type and data. The frame shape is shown below.
Company Header
Head structure
7-1
Communication
Protocol
method
TCP/IP
XGT server
UDP/IP
Ethernet Request / Response Frame
IP Header TCP Header
LSIS Frame Format
Command
Port number
2004
2005
LS IS Frame Format
TCP/IP Data Frame
Data Type
Command structure
Data