Watson-Marlow MC100 - Manual (Page 13)

Users Manual
MC100
MC100 Users Manual Profibus DP - rev 4 Rev. 4 Page 13 of 40
Con3 Communication Connector Connect with
1 RS485 – A I/O
9 pole SubD Male
Crossed cable to for
example PC
2 TxD OUT
3 RxD IN
4 N.C.
5 GND -
6 NC
7 CTS OUT
8 RTS IN
9 RS485 – B I/O
Con4 Fieldbus Interface Profibus DP 9-pole SubD Female
1 - -
2 - -
3 B Line Positive RxD/TxD RS485 Level
4 RTS
5 GND Bus
6 +5V Bus output Max. 10 mA
7 - -
8 A Line Negative RxD/TxD RS485 Level
9 - -
Housing Cable Shield Internally connected to protective shield