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CPU Unit Components and Functions Section 2-2
2-2-2 CPU Unit Capabilities
CJ1 CPU Units
CJ1-H CPU Units
Note The available data memory capacity is the sum of the Data Memory (DM) and
the Extended Data Memory (EM) Areas.
CJ1M CPU Units
Model I/O bits Program
capacity
Data Memory
capacity
(See Note.)
Ladder
instruction
processing
speed
Internal com-
munications
ports
Optional
products
CJ1G-CPU45 1,280 bits
(Up to 3
Expansion
Racks)
60 Ksteps 128 Kwords 0.08 µs Peripheral port
and
RS-232C port
(one each)
Memory Cards
CJ1G-CPU44 30 Ksteps 64 Kwords
Model I/O bits Program
capacity
Data Memory
capacity
(See note.)
Ladder
instruction
processing
speed
Internal com-
munications
ports
Optional
products
CJ1H-CPU67H 2,560 bits
(Up to 3
Expansion
Racks)
250 Ksteps 448 Kwords 0.02 µs Peripheral port
and
RS-232C port
Memory Cards
CJ1H-CPU66H 120 Ksteps 256 Kwords
CJ1H-CPU65H 60 Ksteps 128 Kwords
CJ1G-CPU45H 1280 bits
(Up to 3
Expansion
Racks)
60 Ksteps 128 Kwords 0.04 µs
CJ1G-CPU44H 30 Ksteps 64 Kwords
CJ1G-CPU43H 960 bits
(Up to 2
Expansion
Racks)
20 Ksteps 64 Kwords
CJ1G-CPU42H 1 0Ksteps 64 Kwords
Model I/O bits Program
capacity
Data Mem-
ory capacity
(See Note.)
Ladder
instruction
processing
speed
Internal
communica-
tions ports
Optional
products
Pulse I/O
CJ1M-
CPU23
640 bits (1
Expansion
Rack)
20 Ksteps 32 Kwords
(No EM)
0.1 µs Peripheral
port and
RS-232C
port
Memory
Cards
Supported.
CJ1M-
CPU22
320 bits (No
Expansion
Racks)
10 Ksteps
CJ1M-
CPU21
160 bits (No
Expansion
Racks)
5 Ksteps
CJ1M-
CPU13
640 bits (1
Expansion
Rack)
20 Ksteps Not sup-
ported.
CJ1M-
CPU12
320 bits (No
Expansion
Racks)
10 Ksteps
CJ1M-
CPU11
160 bits (No
Expansion
Racks)
5 Ksteps