1 Features and System Configuration
1-10
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
Remote I/O
Slave
Allocation method (Using the
user-defined variable for R/W
to the allocation area)
Fixed allo-
cations
Select one of the following fixed allocation areas with the use of the
device variable for CJ-series Unit (Slave Fixed Allocated Area Switches
1, 2, and 3).
Allocated
words (CIO
Area)
I/O Size Fixed
Alloca-
tion
Area
Setting
1
Fixed
Alloca-
tion
Area
Setting
2
Fixed
Alloca-
tion
Area
Setting
3
Output
(OUT) area
to the slave
from the
master
1 word 3370 3570 3770
Input (IN)
area to the
master
from the
slave
1 word 3270 3470 3670
Select one of the preceding areas with the use of the software switches.
All are fixed at 1 word per node address. The default setting is Fixed
Allocation Area Setting 1.
User-set
allocations
By CX-
Integrator
Set the areas for the OUT 1 and IN 1/2 blocks (total of 3
blocks), the first words, and the slave allocation sizes with
the use of the CX-Integrator.
Allocated
words
The input and output areas can be the fol-
lowing sizes that start from any word in any
of the following areas: CIO Area, WR Area,
HR Area, DM Area, or EM Area.
Output (OUT) area from this
slave
100
words x 1
Input (IN) area to this slave
100
words x 2
By device
variable for
CJ-series
Unit
Set the areas, the first words, and slave allocation size for
the OUT 1 and IN 1 blocks (total of 2 blocks) with the use
of the device variables for CJ-series Unit (Slave User-set
Allocations Setup Table).
Allocated
words
The input and output areas can be the fol-
lowing sizes that start from any word in any
of the following areas: CIO Area, WR Area,
HR Area, DM Area, or EM Area memory
used for CJ-series Unit.
Output (OUT) area from this
slave
100
words x 1
Input (IN) area to this slave
100
words x 1
Max. No. of I/O points per
DeviceNet Unit slave
Fixed allocations 32 points (1 input word, 1 output word)
User-set
allocations
By CX-
Integrator
4,800 pts (100 input words x 2, 100 output words x 1)
By device
variables
for CJ-
series Unit
3,200 pts (100 input words, 100 output words)
Default settings • Scan list: Disabled
• Master communications: Supported
• Slave communications: Disabled
• Remote I/O communications: Start
• Master fixed allocations: Fixed Allocation Area Setting 1
• Slave fixed allocations: Fixed Allocation Area Setting 1
Item Specifications
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