Note:
Total stub length should not exceed 6.6 m.
15.2
Pin assignments at the pump
Pin 4
Pin 3
Pin 5
Pin 1
Pin 2
Figure 19 - PROFIBUS Pin assignments at the pump
Pin No.
Signal
Function
1
VP
+5 V supply for terminating resistors
2
RxD/TxD-N
Data line minus (A-line)
3
DGND
Data ground
4
RxD/TxD-P
Data line plus (B-line)
5
Shield
Ground connection
Note:
If the pump is the last bus device connected to the PROFIBUS cable it must be
terminated using terminating resistor (PROFIBUS standard EN 50170). To maintain ingress
protection the resistor must be IP66 rated.
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