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Port2 (fieldbus): Connectors S4, S5 MODBUS RTU/MODBUS RTU
Connector S4/S5
RJ10 4-4 pin
Nr. Pin
Name
Description
Note
4
3
2
1
1
GND1 (**)
(*) Insert the RS485 line
termination in the last device on
the Modbus line, see dip-switches.
(**) Connect the GND signal
between Modbus devices with a
line distance > 100 m.
2
Tx/Rx+
Data reception/transmission (A+)
3
Tx/Rx+
Data reception/transmission (B-)
4
+V (reserved)
Cable type: flat telephone cable for pin 4-4 conductor 28 AWG
Connector S4
Connector S5
Line termination (*)
Содержание CFW
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