2 electrical installation, 1 wiring according to emc guidelines, 2 network topology – Lenze E84AYCEO User Manual
Page 27: Electrical installation, Wiring according to emc guidelines, Network topology, Network topology ( 27), 5installation, As a a
Lenze · E84AYCEO communication module (EtherNet/IP™) · Communication Manual · DMS 3.0 EN · 10/2013 · TD17
27
5
Installation
5.2
Electrical installation
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
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 EtherNet/IP to have a rather free topology the limiting factor of which is large
message latencies due to e.g. switches connected in series.
The combination of a line and a stub is useful for system wiring.
EtherNet/IP supports the following topologies:
• Line
[5-4]
Line topology (S = scanner, A = adapter)
• Switch / star
[5-5]
Switch / star topology (SW = switch, A = adapter)
Documentation for the standard device, host, system/machine
Observe the notes and wiring instructions contained in this documentation.
E94AYCEO008
A
A
S
A
A
E94AYCEO005
SW
A
A
A