Chapter 3 System Configuration
3-9
3.2.5 Optical modem communication for moving material communication
Optical modem communication system for Cnet communication on material above moving
linearly
P2P communication or dedicated mode communication with monitoring device
RS-232C/RS-422 communication with optical modem
Communication between Cnet I/F module is dedicated server/client communication
Optical modem connected with Cnet I/F module on mobile body can communicate with the
other optical modem only when positioned in communication available
Main application: Parking tower
[Figure 3.2.7] Optical modem communication system
XGB PLC
Cnet # 1
Monitoring
device
RS-232C
communication
RS-422
communication
XGB PLC
Cnet # 3
XGB PLC
Cnet # 2
XGB PLC
Cnet # 4
Optical
modem
Optical
modem
Optical
modem
Moving material
RS-232C communication
RS-232C communication
RS-232C communication
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