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Port2 (fieldbus): Connectors S4, S5 MODBUS RTU/CANopen
Connector S4
RJ10 4-4 pin
Nr. Pin
Name
Description
Note
4
3
2
1
1
GND1 (**)
(**) Connect the GND signal
between Modbus devices with a
line distance > 100 m.
2
Rx/Tx+
Data reception/transmission (A+)
3
Rx/Tx-
Data reception/transmission (B-)
4
+V (reserved)
Cable type: flat telephone cable for pin 4-4 conductor 28 AWG
Connector S5
D-SUB 9 Pins Female Nr. Pin
Name
Description
Note
1
--
Reserved
Connect the terminal
resistances as shown
in the figure.
2
CAN_L
CAN_L bus line (domination low)
3
RxD/TxD-P
CAN Ground
4
--
Reserved
5
(CAN_SHLD)
Optional CAN Shield
6
(GND)
Optional Ground
7
CAN_H
CAN_H bus line (domination
high)
8
--
Reserved
9
(CAN_V+)
Optional CAN external positive
supply (dedicated for supply of
transceiver and optocouplers,
if galvanic isolation of the bus
node applies)
Cable type: flat telephone cable for pin 4-4 conductor 28 AWG
Содержание CFW
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