Smartslice I/O Allocation To The Grt1-Prt Unit - Omron GRT1 - 27-11-2006 Operation Manual

Station Address Settings and I/O Allocation
3-1-3

SmartSlice I/O Allocation to the GRT1-PRT Unit

I/O Data is mapped in the order in which
the Units are connected, from low to high.
I/O Units with bit allocation are mapped from
the rightmost to leftmost bit, in 2-bit units.
I/O Units with word allocations are mapped
from the low to high word address
Note
PROFIBUS
Communication Unit
1. The presence of Turnback units and cables does not influence the auto-
matic allocation of Unit numbers.
2. The unit numbers allocated automatically to the SmartSlice I/O Units are
unrelated to the PROFIBUS station address set with the rotary switches.
The SmartSlice I/O Units' I/O data is mapped in the I/O memory of the GRT1-
PRT, from which it is transferred to the PROFIBUS Master unit. This allocation
is done automatically and determined by the SmartSlice I/O Unit's type. The
figure below shows this mapping.
I/O memory
16
8
Order of allocation
D C
E
PROFIBUS
Communication
Unit
1. I/O data is mapped in the order of SmartSlice I/O Unit connection to the
PROFIBUS Communication Unit, regardless of the I/O Units' models.
The SmartSlice I/O unit numbers are assigned
automatically in order, from left to right.
I/O I/O I/O I/O
#1 #2 #3 #4
0
(1) Communication Unit
B
A
(2) Each SmartSlice I/O Unit's I/O
data.
(3) SmartSlice I/O Unit
network participation
status.
D
A B C
SmartSlice I/O Units
Section 3-1
I/O
#64
E
Connected order
33