Connecting
4.4 Wiring an RF180C to a controller with RJ45 connector
RF180C communication module
28 Operating Instructions, 12/2012, J31069-D0177-U001-A6-7618
4.4 Wiring an RF180C to a controller with RJ45 connector
A connection can be easily implemented from an RJ-45 connector to an M12 connector.
Self-assembly of an RJ-45-to-M12 cable
● You will need a preassembled PROFINET cable with M12 connectors at both ends twice
the required length. You will also need two RJ-45 connectors for self-assembly. Cut the
M12 cable in the center and connect one RJ-45 connector to each free cable end. This
will result in two RJ-45-to-M12 cables.
● You will need the following individual parts: RJ-45 and M12 plug-in cables and
PROFINET standard cable (unassembled). The parts can be found in the ordering data.
You can make up a cable to your own length requirements using these parts.
Using an RJ-45-to-M12 cabinet feedthrough
This connection variant must always be used when the controller electronics is installed in a
cabinet. The following figure shows the connection layout.
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HJ6&38
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Figure 4-7 Cabinet feedthrough
4.5 Connecting the RF180C to functional ground (PE)
Features
You have to connect the RF180C to the functional ground (PE). For this purpose, a
grounding screw for one grounding cable is provided on the communication module.
If a grounded metal mounting surface is used, the bottom mounting screw of the RF180C
module already establishes a reliable grounding connection. This eliminates the need for a
separate grounding cable.
The connection to functional ground (PE) is also required to deflect the interference currents
and for electromagnetic compatibility.
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