2 Installation
2.9 Connecting local inputs/outputs
46 Modular PLCs XControl: XC-104-…, XC-204-…, XC-303-… 01/23 MN050005EN Eaton.com
2.9 Connecting local inputs/outputs
XC-303-… and XC-204 -… modular PLCs feature local inputs/outputs.
These digital inputs/outputs are configured as inputs by default. However,
this configuration can be changed in the corresponding XSOFT-CODESYS-3
dialog box.
Please refer to ￫ Section “6.1 Configuring the device's local inputs/out-
puts”, page 93.
The inputs/outputs on the XC-204-… are not galvanically isolated and are
powered by the system power supply (V+). Meanwhile, the inputs/outputs
on the XC-303-… are galvanically isolated from the system power supply and
require an external power supply (UL).
2.9.1 Connecting the power supply for local outputs on XC-303-…
Figure 33: Connecting the power supply for outputs Q1 to Q4
The cross-sectional area of the +24 V cables used to supply power to the
inputs/outputs must be sized for the maximum total current drawn by all the
outputs.
3 mm (0.12”)
F1
X2
U
L
= 24 V DC
(18 - 30 V DC SELV)
U
L
–
0 V
U
L
I
L
I
L
≦ 2 A
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