Omron GRT1-PNT - DATASHEET 2 Operation Manual page 55

Device name setting and I/O allocation
3-1-2 Device number setting
3-1-3 SmartSlice I/O Unit number allocation
The Device Number setting for each IO Device is used for the Device-related
status in PLC CIO memory and for the acyclic (FINS) communication to the IO
Device. This IO Device number is set in the IO Controller DTM and is part of
the configuration downloaded to the IO Controller Unit.
The SmartSlice I/O Unit numbers are used to identify the individual SmartSlice
I/O Units in the SmartSlice I/O system. These unit numbers are assigned
automatically at start-up, when the power is turned ON. The numbering starts
from #1 and runs from left to right. It is not necessary for the user to set these
numbers.
PROFINET
Communication Unit
Note 1 The presence of Turnback units and cables does not influence the automatic
allocation of Unit numbers.
2 The unit numbers allocated automatically to the SmartSlice I/O Units are not related
to the PROFINET IO Addressing.
The SmartSlice I/O unit numbers are assigned
automatically in order, from left to right.
I/O I/O I/O
#1 #2 #3
Section 3-1
I/O I/O
#4 #64
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