Siemens SIMATIC ET 200X, Manual

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Wiring
4-19
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
Looping through PROFIBUS-DP and supply voltage
If you want to loop PROFIBUS-DP and/or the supply voltage for the
electronics/sensors through to the next ET 200X, you have to wire the second
connector. This connector must be wired in exactly the same way as the connector
for feeding the first ET 200X (see Figure 4-10).
Wiring of load power supply
If you want to connect a load power supply (24 VDC), you will need:
A connector
A 3-core, flexible Cu cable
Wire the connector to pins 1, 2 and 3 as shown in the diagram below. Terminals 1
and 4; 2 and 5; 3 and 6 are internally jumpered.
2
3
4
5
1
6
PE PE
L+
M
L+
M
Figure 4-11 Pinout of the load voltage connector
!
Caution
If you wire the connectors incorrectly, the device or its components may be
damaged beyond repair!
Looping through load voltage
If you want to loop a load voltage (24 VDC) through to the next ET 200X, you must
wire a 3-core, flexible, copper cable to the connector (pins 4, 5 and 6) in addition to
the wiring arrangement shown in Figure 4-11. Then wire the other end of the cable
to pins 1, 2 and 3 of the next load voltage connector.
Always use the same core colors for the same signals.
Note
The load voltage can be looped through from the power module only when the
connector is plugged into the power module.