Phoenix Contact UM EN TP 3 Series, Руководство пользователя

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Interfaces of the Device
8095_en_00 PHOENIX CONTACT
4-13
4.3.2.1 Pin Assignment
Figure 4-11 9 pin D-SUB female connector strip
Connector in the terminal: 9 pin D-SUB female connector
4.3.2.2 Cable
The maximum length of one segment is 50 m which cannot be exceeded. This 50 m applies
from the first node to the last node in the segment.
Table 4-12 Pin assignment MPI
Pin Designation Function
1 nc Not Connected
2 nc Not Connected
3 RxD/TxD-P Received Data / Transmitted Data Plus
4 CNTR-P Repeater Control Signal Plus
5 DGND Data Transmission Potential
6 VP Supply Voltage of Terminators Plus
7 nc Not Connected
8 RxD/TxD-N Received Data / Transmitted Data Minus
9 CNTR-N Repeater Control Signal Minus
NOTICE
The D-SUB connector strips must be shielded sufficiently. See chapter „Shielding D-SUB
Connectors“ on page 4-19.
NOTICE
Any cable that conforms with the following parameters can be used:
Table 4-13 Cable characteristics MPI
Parameters Value
Loop Resistance 110 Ohm/km
Capacitance 30 nF/km
Surge Impedance 150 Ohm
For further information on the installation, please refer to the Siemens manual "SIMATIC
S7-400 and M7-400 Programmable Controllers Hardware and Installation, 6ES7498-
8AA03-8BA0".