Siemens SIMATIC TOP connect Manual page 28

Connecting
4.3 Connecting components
5. Connect the connecting cables to the front connector module.
Note
Make sure that you follow the correct assignment when connecting the supply voltage
cables for the I/O module and connecting cables to the front connector module:
● The assignment of supply voltage cables to cable connections
● The assignment of cable connections to the address bytes of the module
The assignment is set out in the graphics below with keys.
6. Insert the wire fitted with an end sleeve into the duct.
7. Insert the strain relief (cable tie) provided for the cabling into the front connector module.
The strain relief holds the cabling (supply voltage cables and connecting cables) in the
cable storage space of the I/O module.
8. Press the release button on the front connector module.
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System cabling for S7-300
Manual, 09/2018, 70327045899