Wiring The Mpi / Profibus Dp Bus Connectors; Wiring The Bus Connector - Siemens Simatic S7-300 CPU 31xC Series Installation And Operating Instructions Manual

6.9

Wiring the MPI / PROFIBUS DP bus connectors

6.9.1

Wiring the bus connector

Introduction
You need to network all the nodes you integrate into a subnet of your system. Information on
how to wire the bus connector can be found in the article below.
Wiring a bus connector with screw terminals
1. Strip the bus cable.
2. Open the bus connector housing.
3. Insert the green and the red wire into the screw-terminal block.
4. Press the cable sheath into the clamp. Make sure that the shielding directly contacts the
5. Screw-tighten the wire terminals.
6. Close the bus connector housing.
Wiring a Fast Connect bus connector
1. Strip the bus cable.
2. Open the strain relief of the bus connector.
3. Insert the green and red wire into the open contacting covers.
4. Close the contacting cover.
5. Screw-tighten the strain relief clamp. Make sure that the shielding directly contacts the
S7-300, CPU 31xC and CPU 31x: Installation
Operating Instructions, Edition 08/2004, A5E00105492-05
Details on stripped lengths are found in the product information supplied with the bus
connector.
Always connect the same wires to the same terminal (green wire to terminal A, red wire to
terminal B, for example).
shielding contact surfaces.
Details on stripped lengths are found in the product information supplied with the bus
connector.
Always connect the same wires to the same terminal (green wire to terminal A, red wire to
terminal B, for example).
This presses the conductors into the insulation displacement terminals.
shielding contact surfaces.
6.9 Wiring the MPI / PROFIBUS DP bus connectors
Wiring
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