4 PLC configuration
4.6 Addressing inputs/outputs and marker
84 Modular PLCs XControl: XC-104-…, XC-204-…, XC-303-… 01/23 MN050005EN Eaton.com
4.6 Addressing inputs/outputs and marker
If you open the PLC configuration of a new project, you will receive the cur-
rent view of the default settings of the addressing. In this setting the
addresses are automatically assigned and address conflicts (overlaps) are
reported.
Figure 60: Default setting of the addressing
If you add a module to the PLC in the configurator, the configurator will
assign this module with an address. Further modules are assigned with the
next addresses in ascending order. You can also assign the addresses freely.
However, if you access the “Automatic calculation of addresses” function
later, the addresses are shown in reassigned ascending order.
Check for overlapping addresses
During compilation, addresses assigned twice will be detected and an error
message will be generated.
Addressing by data type
If you assign an address to a word-addressable module tag (e.g., I/O system
XN300 InputChannel2 on the XN322-4AI-PTNI) with the "Input address" field
and this address does not match the data type (e.g., IB11), the PLC configu-
rator will automatically show the next word address after the preceding tag
(e.g., IW12).
Figure 61: Addressing by data type
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