Omron SMARTSLICE GRT1-DRT, Operation Manual

Page: 34 / 366

14
Unit Numbers and I/O Allocations
Section 2-2
Note The unit numbers allocated automatically to the Slice I/O Units are unrelated
to the DeviceNet node address set with the rotary switches.
2-2-2 I/O Allocations in the Slice I/O Terminal’s Master Unit
The Slice I/O Terminal’s I/O data is allocated in the CPU Unit’s I/O memory
and transferred through the Communications Unit and the Unit (such as a
DeviceNet Unit) connected to the CPU Unit.
The Communications Unit’s Programming Device (such as a Configurator)
can be used to freely select the kind of data allocated. Refer to the Communi-
cations Unit’s operation manual for details.
Communications Unit
The Slice I/O Units' unit numbers are allocated
automatically in order, from left to right.
I/O
#1 I/O
#2 I/O
#3 I/O
#4 I/O
#64
: :
E
Connected order
CPU Unit
Master Unit
I/O memory
A
B C D
E
Communications
Unit
A B C
D
Slice I/O Terminal
Data is allocated to I/O memory in the order
that the Units are connected, from lowest to
highest.
I/O Units with bit allocation are allocated data
from the rightmost to leftmost bit, in 2-bit units.
I/O Units with word allocations are allocated
data from the lower to higher word address.
0
8
16
Order of allocation
(1) Communications Unit status
(2) Each Slice I/O Unit's I/O data.
(3) Slice I/O Unit network
participation status.