78
Specifications Section 2-1
Note The values displayed in the table above are valid when a CPU Unit with unit
version 4 or later is combined with CX-Programmer 7.0 or higher.
The following table shows the flash memory capacities for CPU Units with unit version 3.
Earlier CPU Units (unit version 2 or earlier) are not equipped with the function that stores data such as
comment files in flash memory.
CJ1 CPU Units
Note The number of steps in a program is not the same as the number of instruc-
tions. For example, LD and OUT require 1 step each, but MOV(021) requires
3 steps. The program capacity indicates the total number of steps for all
instructions in the program. Refer to 10-5 Instruction Execution Times and
Number of Steps for the number of steps required for each instruction.
Current
consumption
(supplied by Power
Supply Units)
0.64 A at 5 V DC 0.58 A at 5 V DC
Connector
(provided)
One RS-232C Connector (Plug: XM2A-0901, Hood: XM2S-0911-E) provided with CPU Unit as
standard
Item Specification
CPU Units with Built-in I/O CPU Units without Built-in I/O
Model CJ1M-CPU23 CJ1M-CPU22 CJ1M-CPU21 CJ1M-CPU13 CJ1M-CPU12 CJ1M-CPU11
Flash
memory
FB pro-
gram
memory
(Kbytes)
256
Com-
ment files
(Kbytes)
64
Program
index
files
(Kbytes)
64
Symbol
tables
(Kbytes)
64
CPU CJ1G-CPU45 CJ1G-CPU44
I/O bits 1,280
User program memory
(See note.)
60 Ksteps 30 Ksteps
Data Memory 32 Kwords
Extended Data Memory 32 Kwords x 3 banks
E0_00000 to E2_32767
32 Kwords x 1 bank
E0_00000 to E0_32767
Current consumption 0.91 A at 5 V DC
Item Specification
CPU Units with Built-in I/O CPU Units without Built-in I/O
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