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Table 2-1 : Pin Description
(Note: C NFDNET-200T integrates two C N-bus channels, C NFDNET-100T integrates one
C N-bus channel)
Pin
Channel
Name
Function
1
CAN0
L0
CAN bus Signal L
2 R0
-
Terminal resistor R-( When DEF+ and DEF- are short-circuited, internal
120Ω resistance is activated
3 FG
Shield cable (FG
4 R0
+
Terminal resistor R+( When DEF+ and DEF- are short-circuited, internal
120Ω resistance is activated
5 H0
CAN bus Signal H
6
CAN1
L1
CAN bus Signal L
7 R1
-
Terminal resistor R-( When DEF+ and DEF- are short-circuited, internal
120Ω resistance is activated
8 FG
Shield cable (FG
9 R1
+
Terminal resistor R+( When DEF+ and DEF- are short-circuited, internal
120Ω resistance is activated
10 H1
CAN bus Signal H
1 Power 0V GND
2 +VS VCC(DC:10-30V
3
Default
DEF+ When DEF+ and DEF- are short-circuited, the parameters of Ethernet
and C N saved in C NFDNET-100T/200T module will be changed to
default if you restart the C NFDNET-100T/200T module (see Figure
2-4).
4 DEF-
2.2 C N bus connections
To connect CANFDNET-100T/200T module to the CAN-bus, user only need to connect CAN_H and
CAN_L, CAN-bus network adopts straight-line topology, and two terminal 120Ω resistances need to be installed
on the two bus terminals. If the number of odes larger than 2, the 120Ω resistance is not necessary to be installed
on the middle node. The length of branch connection should not be longer than 3 meters. The connections for the
CAN-bus are shown in Figure 2-3.
120R 120R
Node1 Node2 Node3
CANH
CANL