72
CPU Unit Function Block Specifications
Section 2-8
CJ1M CPU Units
Inside
com-
ment
memory
(ver. 3.0
or later)
Function
block pro-
gram
memory
(Kbytes)
1,664 1,664 1,024 512 1,024 512 512 512
Com-
ment files
(Kbytes)
128 128 64 64 64 64 64 64
Program
index files
(Kbytes)
128 128 64 64 64 64 64 64
Variable
tables
(Kbytes)
128 128 128 64 128 64 64 64
Item Specification
Item Specification
Units with internal I/O functions Units without internal I/O functions
Model CJ1M-CPU23 CJ1M-CPU22 CJ1M-CPU21 CJ1M-CPU13 CJ1M-CPU12 CJ1M-CPU11
I/O points 640 320 160 640 320 160
Program capacity
(steps)
20K 10K 5K 20K 10K 5K
Number of Expan-
sion Racks
1 max. Expansion not supported 1 max. Expansion not supported
Data memory 32K words
Extended Data
Memory
None
Pulse start times 46 µs (without acceleration/
deceleration)
70 µs (with acceleration/decel-
eration)
63 µs (without
acceleration/
deceleration)
100 µs (with
acceleration/
deceleration)
---
Number of sched-
uled interrupts
2121
PWM outputs 2 1 None
Maximum value of
subroutine number
1,024 256 1,024 256
Maximum value of
jump number in JMP
instruction
1,024 256 1,024 256
Internal inputs 10 points
• 4 interrupt inputs (pulse catch)
• 2 high-speed counter inputs (50-kHz phase dif-
ference or 100-kHz single-phase)
---
Internal outputs 6 points
• 2 pulse outputs (100 kHz)
• 2 PWM outputs
6 points
• 2 pulse out-
puts
(100 kHz)
• 1 PWM out-
put
---
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