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3. System configuration
RS-485 multi-drop connection communication
Host computer
RS-485
Host computer
RS-232C
PLC
RS-485
4. Wiring
When using a communication converter
• Connector: D-sub 25-pin
Connection: RS-232C
Host computer
D-sub 25-pin connector
KT2
No.0
(Fig. 3-1)
Communication
converter
RS-232C
RS-485
(Fig. 3-2)
KT2
No.0
(Fig. 3-3)
RS-485 (Communication speed: 2400, 4800, 9600, 19200bps)
Shielded
wire
(Fig. 4-1)
KT2
KT2
No.1
No.2
RS-485
KT2
KT2
No.0
No.1
KT2
KT2
No.1
No.2
FG
Shielded wire
FG
2
KT2
No.30
KT2
No.30
KT2
No.30
KT2
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