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Port2 (fieldbus): connectors S4, S5 MODBUS RTU/Profibus DP
Figure 25
Port2: Fieldbus Modbus RTU/Profibus DP interface
Table 21
Connector S4
Nr. Pin
RJ10 4-4 pin
4
3
2
1
Cable type: flat telephone cable for pin 4-4 conductor 28AWG
Table 22
Connector S5
Nr. Pin
D-SUB 9 pins male
1
2
3
4
5
6
7
8
9
Cable type: Shielded 1 pair 22 AWG conforming to PROFIBUS
26
Name
1
GND1 (**)
2
Tx/Rx+
Data reception/transmission (A+)
3
Tx/Rx-
Data reception/transmission (B-)
4
+V (reserved)
Name
1
SHIELD
2
M24V
3
RxD/TxD-P
Data reception/transmission
4
n.c.
5
DGND
6
VP
Positive power supply +5V
7
P24V
8
RxD/TxD-N
Data reception/transmission
9
n.c.
Decription
-
-
Decription
EMC protection
Output voltage - 24V
n.c.
Data Ground
Output voltage +24V
n.c.
80999D_MHW_GFW 400-600A_07-2020_ENG
S5 female connector
S4 female connector
Yellow Led
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.
VP (6)
390 W
Data line
RxD/TxD-P (3)
220 W
Data line
RxD/TxD-N (8)
390 W
DGND (5)
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