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2.10
Communication Interface
Pin-No.
RS485-Interface
Modbus and
IEC 60870-5-103
PROFIBUS-Interface
1
Protective Earth
Protective Earth
2
3 A B
(RxD/TxD-P)
4 RTS
CTRL-A
5 GND
GND
6
+5 V
+5 V
7
8 B A
(RxD/TxD-N)
9
The bus is terminated at the connection cable.
The isolated interface supply voltage is provided via the
D-subminiature female connector. Therefore, the matching
resistors for signals can be connected to the cable.
WARNING!
All computing devices connected to the RS485 communication
interface port shall be connected to a SELV (Separated Extra Low
Voltage) circuit and must comply with the following standard:
IEC/EN 60950.
Summary of Contents for SIMEAS P 7KG7750
Page 23: ...21 Abbildung 2 7KG7750 Variante IP 65 ...
Page 35: ...33 Einphasen Wechselstrom Dreileiter Drehstrom gleiche Belastung ...
Page 36: ...34 Dreileiter Drehstrom beliebige Belastung Vierleiter Drehstrom gleiche Belastung ...
Page 53: ...51 2 7 Block Diagram ...
Page 64: ...62 Figure 2 7KG7750 variant IP 65 ...
Page 76: ...74 Single phase AC current Three wire three phase balanced ...
Page 77: ...75 Three wire three phase unbalanced Four wire three phase balanced ...
Page 87: ...85 Notes ...