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Omron PLC CJ1 Series

The CJ1 Series of small Programmable Controllers provide all the functions required for everything from machine control to process control in a backplane-free structure that enables flexible system configuration.


Product name Specifications Current
consumption
(A)
Model number International
standards
Maximum number of
I/O points and
mountable Units (No.
of Expansion Racks)
Program
capacity
Data area
memory
capacity
LD
execution
time
5 V
system
24 V
system
CJ1M
CPU
Units
640 I/O points and
20 Units max.
(1 Expansion Rack max.)
20K
steps
32K words
DM: 32K words
EM: None
0.1 μs 0.58 * --- CJ1M-CPU13 UC1, CE,
N, L
320 I/O points and
10 Units max.
(No Expansion Racks)
10K
steps
CJ1M-CPU12
160 I/O points and
10 Units max.
(No Expansion Racks)
5K
steps
CJ1M-CPU11


Product name Specifications Current 
consump- 
tion (A)
Model Stand- 
ards
I/O 
capacity/ 
Mountable 
Units 
(Expansion 
Racks)
Pro- 
gram 
ca- 
pacity
Data 
memory 
capacity
LD in- 
struc- 
tion 
exe- 
cution 
time
Eth- 
ernet 
func- 
tion
5 V 24 V
CJ1M 
CPU 
Units
Ethernet 
function
640 points/ 
20 Units 
(1 Expansion 
Racks max.)
20K 
steps
32K words 
(DM: 32K 
words, 
EM: None)
0.1 μs YES 
*1
0.95 
*2
- CJ1M-CPU13-ETN UC1, 
N, L, 
CE
320points/ 
10 Units (No 
Expansion 
Rack)
10K 
steps
0.95 
*2
- CJ1M-CPU12-ETN
160 points/ 
10 Units (No 
Expansion 
Rack)
5K 
steps
0.95 
*2
- CJ1M-CPU11-ETN 
*3

CJ1M CPU Units (with Built-in I/O)

Product 
name
Specifications Current 
consump- 
tion (A)
Model Stand- 
ards
I/O 
capacity/ 
Mountable 
Units 
(Expansion 
Racks)
Program 
capacity
Data 
memory 
capacity
LD 
instruc- 
tion ex- 
ecution 
time
Built-in 
I/O
5 V 24 V
CJ1M
CPU 
Units
Built- 
in I/O 
*2
1569_lu_1_1
640 points/ 
20 Units 
(1 Expansion 
Racks max.)
20K steps 32K words 
(DM: 32K 
words, 
EM: None)
0.1 μs 10 inputs 
and 
6 outputs, 
2 counter 
inputs, 
2 pulse 
outputs
0.64 
*1
--- CJ1M-CPU23 
*3
UC1, 
N, L, 
CE
320points/ 
10 Units 
(No Expansion
Rack)
10K steps 0.64 
*1
--- CJ1M-CPU22 
*3
160 points/ 
10 Units 
(No Expansion
Rack)
5K steps 0.64 
*1
--- CJ1M-CPU21 
*2 *3


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