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Chapter 7 XGT Dedicated Communication
7-1
Chapter 7 XGT Dedicated Communication
7.1 Summary of Protocol
7.1.1 Summary
XGT protocol is developed by LSIS for XGT Cnet I/F module, which allows the user to read/write the data,
monitor by registration of monitor variable and read/write the XG5000 program of remote PLC CPU through
remote connection of remote PLC CPU. By using the XG5000 frame monitor, the user can check the TRX frame
during the communication. XGT protocol is divided into XGT client (which requests writing/reading the data) and
XGT server (which responds to XGT client).
(1) Writing/Reading the data
Without extra expense, the user can use the functions to read/write the data of inner device area, execute the
monitor and register the monitor easily with only Cnet I/F module.
(2) Writing/Reading the file
The user can read/write the program and parameter saved in the remote PLC CPU through remote 1, 2 connections by
using the XGT Cnet I/F module.
(3) Frame monitoring
Frame monitoring function of XG5000 allows the user can see the TRX frame during the communication. By
using this function, the user can analyze the data, check the error code and solve the problem developed during
the communication.
(4) XGT client, server
When using the XGT protocol, XGT client requests writing/reading the data. XGT server analyzes the received
data. In case of normal frame, XGT server deals with the received data with ACK response and in case of
abnormal frame, XGT transmits the NAK response including error code to XGT client.
(5) Cnet I/F module provides the following functions when using the XGT protocol
(a) RS-232C and RS-422/RS-485 acts as independently
(b) Single / Continuous Device Write
(c) Single / Continuous Device Read
(d) Registration of Monitor Variable
(e) Execution of Monitor
(f) 1:1 connection (LS link) system configuration (Cnet I/F module: RS-232C)
Содержание XGL-C22A
Страница 74: ...Chapter 6 Communication Parameter 6 22 4 Click I O Sync 6 Read the message If there is no problem click OK ...
Страница 172: ...Chapter 8 Modbus Communication 8 23 ...
Страница 246: ...Chapter 10 Program Examples 10 40 XG 5000 program Sequence Program 1 2 3 4 ...
Страница 247: ...Chapter 10 Program Examples 10 41 Sequence Program 5 6 ...
Страница 289: ...Appendix A 23 Sub procedure module When port open event occurs perform the next module ...
Страница 291: ...Appendix A 25 The lower code shows BCC check setting ...
Страница 296: ...Appendix A 30 4 Example Register monitor X 5 Example execution monitor Y Address of server Monitor result ...
Страница 297: ...Appendix A 31 A 4 Dimension Unit mm XGL C22A CH2A C42A H W version Less than V2 0 H W version V2 0 or Later ...