Endress+Hauser Liquiline CM444 - Connecting Additional Inputs, Outputs or Relays; Digital Inputs and Outputs

Electrical connection Liquiline CM442/CM444/CM448
32 Endress+Hauser
5.4.2 Connection via M12 plug
PROFIBUS DP
M12 Y-section Wiring in M12 Y section Pin assignment in connector and
socket
RD
GN
P0V
P5V
82
81
J1
P2
P1
96
95
99
 45 M12 connection
P2
J1
1
2
3
4
5
1
2
3
4
5
P1
1
2
3
4
5
 46 Wiring
1 2
34
5
2 1
43
5
 47 Connector (left) and
socket (right)
1 P5V, 5 V power supply for
external terminating
resistor
2 A
3 P0V, reference potential for
P5V
4 B
5 n.c., not connected
* Shielding
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.