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19
1.11
Communication Interface
Pin-No.
RS485-Interface
PROFIBUS-Interface
1
Protective Ground
Protective Ground
2
3 A B
(RxD/TxD-P)
4 RTS
CTRL-A
5 GND
EXT
GND
EXT
6 +5
V
EXT
+5
V
EXT
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 circuit and must
comply with the following standards: UL 1950 and IEC/EN 60950.
Summary of Contents for SIMEAS P 7KG7550
Page 23: ...21 ...
Page 24: ...22 IP54 Front NOTE All dimensions in mm Width of the device 144 mm ...
Page 51: ...49 Notes ...