Omron CJ1W-DRM21 - Precautions on the Number of Master Units

4 Remote I/O Master Communications
4-6
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
You can construct the following system configurations based on various numbers of Master Units when
DeviceNet Units are used.
Max. No. of
I/O points per
DeviceNet
Unit
Fixed allocations 2,048 pts (64 input words, 64 output words)
User-set
allocations
By device
variable for
CJ-series
Unit
16,000 pts (500 input words x 1 block, 500 output words x 1 block)
By CX-Inte-
grator
32,000 pts (500 input words x 2 blocks, 500 output words x 2 blocks)
Max. No. of
I/O per Slave
controllable by
a DeviceNet
Unit
Fixed allocations 1,024 pts (32 input words, 32 output words)
User-set
allocations
By device
variable for
CJ-series
Unit
3,200 pts (100 input words, 100 output words)
By CX-Inte-
grator
3,200 pts (100 input words, 100 output words)
4-1-3 Precautions on the Number of Master Units
Pattern One Master Unit con-
nected on a single net-
work
Multiple Master Units con-
nected on a single network
Multiple Master Units con-
nected to a single CPU Unit
Configuration
Remote I/O communications
Fixed alloca-
tions
❍
×
❍ (You can use up to 3 Master
Units.)
User-
set
alloca-
tions
By
CX-
Inte-
grator
❍❍ (See note.) ❍
By
device
vari-
able
for CJ-
series
Unit
❍❍ (See note.) ❍
Item Specifications
Ye s
AB