2 Installation
2.6 Wiring in accordance with EMC requirements
40 Modular PLCs XControl: XC-104-…, XC-204-…, XC-303-… 01/23 MN050005EN Eaton.com
Figure 28: Potential relationships XC-104-…, XC-204-…
The galvanic isolation for the Ethernet interfaces is listed in the appendix –
please refer to → Section “ Galvanic separation”, page 173.
2.6 Wiring in accordance with EMC requirements
Undesired faults can occur on the field bus and the analog inputs due to elec-
tromagnetic interference. This can be minimized beforehand by the imple-
mentation of suitable EMC measures.
These include:
• EMC-conformant system configuration,
• Routing all analog input and field bus cables in a way that meets EMC
requirements
• Measures designed to reduce potential differences
• the correct installation of the field bus system
(cable, connection of the bus connectors, etc.),
• Using shielding
GND
I/Q 1
I/Q 2
ETHO
ETH1
V+
0 V
X4
ETHO
ETH1
X3
X1
X2
CAN1
RS485
IO
GND
CPU system system bus