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INTERBUS S / Buscoupler
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2.4 Bus connection and station (node) address
Ill. 5: Bus connection
Fieldbus connection:
The Interbus interface is normally provided by D SUB connection according to US
Standard EIA RS485 for data transmission by wires.
Outgoing
D-SUB (OUT)
PIN cable PIN Incoming
D-SUB (IN)
/DO 6 green 6 /DO
DO 1 yellow 1 DO
/DI 7 pink 7 /DI
DI 2 gray 2 DI
COM 3 brown 3 COM
5 commoning wire
9 commoning wire
Table 1: Wire connection Interbus S
The connection point of the D SUB connector is lowered in such a way that after a
connector is installed placement in an 80mm high switchbox is possible.