LSIS XBE-DC08A, User Manual

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Chapter 2 Built-in Cnet communication
2-10
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2.2 Cnet Communication System Configuration
Communication system by using XGB built-in communication function is diverse. In this chapter, it describes system
configuration example.
1:1 Connection to PC (HMI) (No Modem) 2.2.2
PC (HMI) and XBCU main unit are connected by RS-232C or RS-485 channel, PC (HMI) and PLC is connected by
1:1 without modem. In most case, PC (HMI) acts as client and Cnet I/F module acts as server which respond request
of PC (HMI). Since there is no modem, in case of using RS-232C channel, communication distance is max 15m, in
case of using RS-422 channel, communication distance is max 500m. Operation mode of Cnet I/F is set according to
PC (HMI)’s communication method.
1) In case of using 1:1 connection with normal PC
•
Wiring method
External form of
PC
PC
Connection number and signal
direction
XGB main unit
XGB external
form
Pin no. Pin no.
Signal
name
1 1 485-
2 (RXD) 2 485+
3(TXD) 3 SG
4 4 TX
5(GND) 5 RX
6
7
8
9
In case of using channel 2, connect 485+ and 485- of RS485 terminal.
XGB main unit
built-in communication
Female Type