Installation
Electrical installation
26
Lenze · E84AYCER communication module (PROFINET) · EDS84AYCER EN 3.0 - 02/2019
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5.2 Electrical installation
5.2.1 Wiring according to EMC guidelines
In typical systems, standard shielding is sufficient for Ethernet cables.
However, in environments with a very high level of interference, EMC resistance can be improved
by additionally earthing the cable shield on both sides.
For this observe the following notes:
1. Remove the plastic sheath of the cable at a length of 2 cm.
2. Fasten the cable shield to the shield support of the standard device.
5.2.2 Network topology
It is typical of PROFINET to have a rather free topology the limiting factor of which is large message
latencies due to e.g. switches connected in series.
Internal switch latency
( 20)
The combination of a line and a stub is useful for system wiring.
PROFINET supports the following topologies:
•Switch / star
[5-4] Switch / star topology (S = switch, D = I/O device)
Documentation for the standard device, control system, system/machine
Observe the notes and wiring instructions contained in this documentation.
E94YCER005
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