Alternative Ways Of Connecting The Voltage Supply - Siemens SIMATIC ET 200L Manual

Connecting the
There are three different ways to connect the voltage supply to the terminal
Voltage Supply
block.
1st alternative
1L+ 2L+ 3L+ 4L+ 5L+
1M 2M 3M 4M 5M
Shared voltage supply for
electronics and groups of
channels
Figure 3-4

Alternative Ways of Connecting the Voltage Supply

Block Diagram
The block diagrams relating to the ET 200L distributed I/O device will be
found in Chapter 7.
Label A labeling strip is located on the front of the electronics block for noting the
assignment of inputs and outputs.
Terminal Connec- A terminal connection model showing the terminal connection assignment
tion Model
and electrical connections is located beneath the labeling strip on the elec-
tronics block (refer to Chapter 8).
Clipping on the Clip the bus connector on the electronics block.
Bus Connector
1. Clip the bus connector on the PROFIBUS-DP terminal connection after
2. Tighten the fastening screws of the bus connector.
ET 200L Distributed I/O Device
EWA-4NEB 780600902-05
2nd alternative
L+ L+
1L+ 2L+ 3L+ 4L+
1M 2M 3M 4M
M M
Shared voltage supply for
groups of channels
Separate voltage supply for
electronics
setting the PROFIBUS address of the ET 200L distributed I/O device (re-
fer to Section 2.3).
3rd alternative
L+ L+ L+
5L+
1L+ 2L+ 3L+
5M
1M 2M 3M
M M M
Separate voltage supply for
each group of channels
Separate voltage supply for
electronics
Wiring
L+
4L+ 5L+
4M 5M
M
3-11