Liquiline CM442/CM444/CM448 Electrical connection
Endress+Hauser 37
6.5.2 Connection via M12 connector
When using the M12 Y-section, the maximum data transfer rate is limited to 1.5 MBit/s.
For direct wiring, the maximum data transfer rate is 12 MBit/s.
DIP switches on front of module
DIP Factory setting Assignment
1-128 ON Bus address (--> "Commissioning/Communication")
OFF Write protection: "ON" = configuration not possible via the bus, only via local operation
Service OFF Only for service, not to be used by the operator
PROFIBUS DP, Modbus RS485
M12 Y-section Wiring in Y-section Pin assignment in connector and socket
a0016310
Fig. 63: M12 connection
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Fig. 64: Wiring
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Fig. 65: Connector (left) and socket (right)
1 P5V, 5 V power supply for external
terminating resistor
2 A (GN), signal RxD/TxD-N
3 P0V, reference potential for P5V
4 B (RD), signal RxD/TxD-P
5 n.c., not connected
*Shield
*=Thread
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