Chapter 9 Remote Communication Control
70
Chapter 9 Remote Communication Control
9.1 General
Remote communication control is a function is for programming, download of user program, program debugging,
monitoring, etc in network system where PLCs are connected with each other Enet by remote control without moving the
physical connection status of XD-PD.
It is convenient for easy access to each device from a place without repositioning when network-connected devices are separated
far. Communication service function creates the following logical path to attain its purpose.
PLC [1]
IP: 192.168.91.188
PLC [2]
IP: 192.168.91.189
PLC [n]
IP: 192.168.91.190
RS232
XG-PD
또는 XG5000
로컬 접속
이더넷 통신을 사용한 논리 접속(리모트 접속)
PLC [1]
IP: 192.168.91.188
PLC [2]
IP: 192.168.91.189
PLC [n]
IP: 192.168.91.190
RS232
XG-PD
또는 XG5000
로컬 접속
이더넷 통신을 사용한 논리 접속(리모트 접속)
[Fig. 9-1]
A network is supposed where RS-232C cable is connected to PLC #1, and PLC #1, PLC #2, PLC #N are connected with each
other via Enet.
In order to access the contents of PLC #1 in [Fig.9-1], do local connection on XG-PD online menu, then access the
contents of PLC #1. After finishing access, to access the contents of PLC #N, disconnect the access with PLC #1.
Then, select PLC # N (Station No: N, FEnet slot of PLC #1: 2), accessing it connects logical connection between RS-
232C and Enet.
This status as processed identically to connection with RS-232C as moved to PLC #N station is available to execute all
functions of program, download, debugging and monitoring as in PLC #1.
Furthermore, when a PC with operating XG-PD is installed with Enet module is installed, and it’s connected to same network with
the PLC, it can directly do remote 1 connection with PLC without local connection through RS-232C,
With this remote communication service, easy access to PLC position in the distance is available without moving thereto,
which is useful for maintenance of PLC system.
Local connection
Logical connection via Ethernet (remote connection)