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Port2 (fieldbus): connectors S4, S5 MODBUS RTU/CANOpen
Figure 26
Port2: Fieldbus Modbus RTU/CANOpen Interface
Table 23
Connector S4
Nr. Pin
RJ10 4-4 pin
4
3
2
1
Cable type: flat telephone cable for pin 4-4 conductor 28AWG
Table 24
Connector S5
Nr. Pin
D-SUB 9 pins female
5
4
3
2
1
9
8
7
6
Cable type: Shielded 2 pairs 22/24AWG conforming to CANopen.
80999D_MHW_GFW 400-600A_07-2020_ENG
Name
1
GND1 (**)
2
Tx/Rx+
Data reception/transmission (A+)
3
Tx/Rx-
Data reception/transmission (B-)
4
+V (reserved)
Name
1
-
2
CAN_L
CAN_L bus line (domination low)
3
CAN_GND
4
-
5
(CAN_SHLD)
6
(GND)
7
CAN_H
CAN_H bus line (domination high)
8
-
Optional CAN external positive supply
(dedicated for supply of transceiver
9
(CAN_V+)
and optocouplers, if galvanic isolation
Decription
-
-
Decription
Reserved
CAN Ground
Reserved
Optional CAN Shield
Optional Ground
Reserved
of the bus node applies)
S5 male connector
S4 female connector
Red Led
Green Led
Note
(**) Connect the GND signal between Modbus
devices with a line distance > 100 m.
Note
Connect the terminal resistances as shown
in the figure.
node 1
. . . . . . . .
CAN_H
CAN Bus Line
CAN_L
node n
27
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