2 Basic System Configuration and Devices
2-20
CJ2 CPU Unit Hardware User’s Manual
*1 With a CJ2 CPU Unit, up to 10 Configuration Units can be connected in the CPU Rack and in each Expansion Rack. The CJ1W-NC@@4,
however, must be counted as two Units. Configure the Units to satisfy the following formula.
Number of CJ1W-NC@@4 Units × 2 + Number of other Units ≤ 10
For example, if five CJ1W-NC@@4 Units are connected to one Rack, no other Units can be connected.
*2 The Units must be mounted on the CPU Rack to use synchronous unit operation.
*3 In addition to the words allocated in the Special I/O Unit Area, up to 144 words are allocated according to the number of axes and func-
tions uses. Word allocations are set using the CX-Programmer.
*4 The Space Unit is for Position Control Units.
*5 If interrupts to the CPU Unit are used, mount the Interrupt Input Unit in one of the following slots on the CPU Rack.
• CJ2H-CPU6@-EIP: Slots 0 to 3
• CJ2H-CPU6@ or CJ2M-CPU@@: Slots 0 to 4
*6 Includes the weight of accessory connectors.
Special I/O
Units
ID Sensor
Units
V600-series single-
head type
CJ1W-V600C11 10 words 100 words 0 to 95 40
Units
0.26 0.12 120 g max.
V600-series two-head
type
CJ1W-V600C12 20 words 200 words 0 to 94
(uses
words for
2 unit
numbers)
40
Units
0.32 0.24 130 g max.
V680-series single-
head type
CJ1W-V680C11 10 words 100 words 0 to 95 40
Units
0.26 0.13 120 g max.
V680-series two-head
type
CJ1W-V680C12 20 words 200 words 0 to 94 40
Units
0.32 0.26 130 g max.
High-speed
Counter Unit
Number of counter
channels: 2, Maximum
input frequency:
500 kHz, line driver
compatible
*5
CJ1W-CT021
40 words 400 words 0 to 92
(uses
words for
4 unit
numbers)
24
Units
0.28 --- 100 g max.
Compo-
Bus/S Mas-
ter Units
CompoBus/S remote
I/O, 256 bits max.
CJ1W-SRM21 10 words or
20 words
None 0 to 95 or
0 to 94
40
Units
0.15 ---
66 g max.
*6
CompoNet
Master Unit
CompoNet remote I/O CJ1W-CRM21 130 g max.
Communications
mode No. 0:
128 inputs/
128
outputs for
Word Slaves
20 words None 0 to 94
(uses
words for
2 unit
numbers)
40
Units
0.40 ---
Communications
mode No. 1:
256 inputs/
256 outputs for
Word Slaves
40 words None 0 to 92
(uses
words for
4 unit
numbers)
24
Units
0.40 ---
Communications
mode No. 2:
512 inputs/
512 outputs for
Word Slaves
80 words None 0 to 88
(uses
words for
8 unit
numbers)
12
Units
0.40 ---
Communications
mode No. 3:
256 inputs/
256 outputs for
Word Slaves and
128 inputs/
128 outputs for Bit
Slaves
80 words None 0 to 88
(uses
words for
8 unit
numbers)
12
Units
0.40 ---
Communications
mode No. 8:
1,024 inputs/
1,024 outputs for
Word Slaves and
256 inputs/
256 outputs for Bit
Slaves maximum
10 words Depends on
setting
0 to 95
uses
words for
1 unit
number)
40
Units
0.40 ---
Type Name Specifications Model
Number of
words allo-
cated
(CIO 2000 to
CIO 2959)
Number of
words allo-
cated
(D20000 to
D29599)
Unit No.
Num-
ber
of
moun
table
Units
Current con-
sumption (A)
Weight
5
VDC
24
VDC
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