Delta AS Series Operation Manual page 190

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RS485

Pin
1
2
3
4
5

RS485 Wiring
Terminal
resistor
(120 ohm)
CAN Pins and Wiring


CAN Pins for AS200 / AS300 Series PLC CPU
Pin
1
2
3
4
5
Note: Pin4 and Pin5 must be short-circuited to activate the built-in terminal resistor 120Ω and work as an
impedance to reduce noise inference when signal reflections occur and ensure signal can be transmitted
normally.

CAN Wiring for AS200 / AS300 Series PLC CPU
Master
CA N+ CA N-
1. It is recommended to use Daisy Chain for connection and be sure to use terminal resistor in the
beginning and the end of the terminal arrangement.
Pin4 and Pin5 must be short-circuited to activate the built-in terminal resistor 120Ω.
2.
Signal
+
-
SG
+
-
Master Slave
D+ D- SG D+ D- S G
Shielded
cable
Signal
CAN+
CAN-
GND
120Ω
GN D P in 4 P in 5 C AN + C AN -
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Description
COM1 D+
COM1 D-
Signal Ground
COM2 D+
COM2 D-
Slave
SG D+ D-
Shielded
cable
Description
CAN_H
CAN_L
GROUND
Terminal resistor
Slave
GN D P in 4 Pi n5 GN D
Shielded
1
2
3
4
5
1
2
3
4
5
Slave
CA N+ CA N- P in 4 P in 5
cable