Chapter 3 System Configuration
3-8
3.2.4 Dedicated communication with PC (HMI) and different type RS-422 communication
Null-modem communication by using PC (HMI) and RS-232C channel
PC (HMI) acts as client station, Cnet I/F module acts as server, at this time, module setting acts as
RS-232C XGT server
Cnet I/F module RS-422 channel acts as P2P mode.
It transmits indication data to display module of mosaic panel through RS-422 channel
Reading display transmission data from PC
[Figure 3.2.6] 7-Segment operating system for RS-422
Type
Module setting
XBL-C21A XBL-C41A Station no.
PLC Cnet #1 XGT server P2P 1
[Table 3.2.2] Module setting table per station
XGB PLC
Cnet # 1
HMI - PC
(GLOFA VIEW)
RS-232C communication
RS-422 communication