Precautions On The Number Of Master Units - Omron CJ1W-DRM21 Operation Manual

4 Remote I/O Master Communications
Item
Max. No. of Fixed allocations
I/O points per
User-set
DeviceNet
allocations
Unit
Max. No. of Fixed allocations
I/O per Slave
User-set
controllable by
allocations
a DeviceNet
Unit
4-1-3

Precautions on the Number of Master Units

You can construct the following system configurations based on various numbers of Master Units when
DeviceNet Units are used.
Pattern One Master Unit con-
nected on a single net-
Configuration
Remote I/O communications
Fixed alloca-
tions
User- By
set CX-
alloca- Inte-
tions grator
By
device
vari-
able
for CJ-
series
Unit
4-6
2,048 pts (64 input words, 64 output words)
By device 16,000 pts (500 input words x 1 block, 500 output words x 1 block)
variable for
CJ-series
Unit
By CX-Inte- 32,000 pts (500 input words x 2 blocks, 500 output words x 2 blocks)
grator
1,024 pts (32 input words, 32 output words)
By device 3,200 pts (100 input words, 100 output words)
variable for
CJ-series
Unit
By CX-Inte- 3,200 pts (100 input words, 100 output words)
grator
Multiple Master Units con-
nected on a single network
work
Yes
A
❍
❍
❍
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
Specifications
B
×
❍ (You can use up to 3 Master
❍ (See note.)
❍ (See note.)
Multiple Master Units con-
nected to a single CPU Unit
Units.)
❍
❍