Wiring the S7-400
4-29
AutomationSystem S7-400 Hardwareand Installation
A5E00850741-01
4.18 Labeling a Front Connector

Labels and TerminalDiagram

Each signal module is provided with three labels: two blank labels and one printed
label showing the terminal diagram for inputs and outputs.
Figure 4-18 shows the locations for fitting the individual labels on the front
connector.
Label
Label
Terminaldiagram
interior
in front connector
exterior
Figure 4-18 Fitting the Labels on the Front Connector
Tolabel a front connector, follow the steps outlined below:
1. Enterthe addresses of the individual channels on the two labels. Note the slot
numbers on the labels to record the assignment of front connector to module.
2. Placea label on the left of the opened front connector. The label has a
T-shapedblank in the middle with which you can fix the label onto the front
connector housing. Bend the blank slightly to one side and push it behind the
corresponding cutout of the front connector whilst sliding in the label
(see Figure 4-19).
3. Refitthe cover on the front connector.
4. Slidethe label with the terminal diagram of the inputs or outputs into the interior
of the cover of the front connector.
5. Slidea label externally into the cover of the front connector.