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Ordering Information
DeviceNet Unit
DeviceNet Unit
CompoNet Master Unit
CompoBus/S Master Unit
Unit
classi-
fica-
tion
Product
name
Specifications Communications type No. of unit
numbers
allocated
Current
consump-
tion (A)
Model Standards
5 V 24 V
CJ1
CPU
Bus
Units
DeviceNet
Unit
Functions as master and/
or slave; allows control of
32,000 points max. per
master.
• Remote I/O communica-
tions master (fixed or
user-set allocations)
• Remote I/O communica-
tions slave (fixed or user-
set allocations)
• Message communica-
tions
1 0.29 --- CJ1W-DRM21 UC1, N, L,
CE
Unit
classi-
fica-
tion
Product
name
Specifications No. of unit
numbers
allocated
Current
consump-
tion (A)
Model Standards
Communications
functions
No. of I/O points
per Master Unit
5 V 24 V
CJ1
Spe-
cial I/O
Unit
CompoNet
Master Unit
• Remote I/O com-
munications
• Message commu-
nications
Word Slaves: 2,048 max.
(1,024 inputs and 1,024 outputs)
Bit Slaves: 512 max.
(256 inputs and 256 outputs)
1, 2, 4, or 8 0.4 --- CJ1W-CRM21 CE, U, U1,
UC, UC1
(approval
pending)
Unit
classi-
fica-
tion
Product
name
Specifications No. of unit
numbers
allocated
Current
consump-
tion (A)
Model Standards
Communica-
tions functions
No. of I/O points Max. Units
mountable
per CPU
Unit
5 V 24 V
CJ1
Spe-
cial I/O
Unit
CompoBus/
S Master
Unit
Remote I/O
communications
256 max.
(128 inputs and 128
outputs)
40 1 or 2
(variable)
0.15 --- CJ1W-SRM21 UC1, N, L,
CE
128 max.
(64 inputs and 64
outputs)