1 Overview
1-14
CJ2 CPU Unit Hardware User’s Manual
*1 The following times are added if EtherNet/IP data tag links are used for the CJ2H-CPU6@-EIP.
Normal operation: 100 µs + Number of transfer words x 0.33 µs
High-speed interrupt function enabled: 100 µs + Number of transfer words × 0.87 µs
The following time must be added when using EtherNet/IP tag data links for the CJ2M-CPU3@.
100 µs + (Number of words transferred × 1.8 µs)
The following time must be added when using Pulse I/O Modules with a CJ2M CPU Unit:
10 µs × Number of Pulse I/O Modules
*2 This applies when high-speed interrupts are used.
*3 Supported only by CJ2M CPU Units with unit version 2.0 or later. A Pulse I/O Module must be mounted.
1-3-2 Performance Specifications
Items
CJ2H- CJ2M-
CPU64
(-EIP)
CPU65
(-EIP)
CPU66
(-EIP)
CPU67
(-EIP)
CPU68
(-EIP)
CPU
11/31
CPU
12/32
CPU
13/33
CPU
14/34
CPU
15/35
User Memory 50K
steps
100K
steps
150K
steps
250K
steps
400K
steps
5K steps 10K
steps
20K
steps
30K
steps
60K
steps
I/O Bits 2,560 bits
Process-
ing Speed
Overhead Processing
Time
*1
Normal Mode: CJ2H-CPU@@-EIP:200 µs
CJ2H-CPU@@: 100 µs
Normal Mode: CJ2M-CPU3@: 270 µs
CJ2M-CPU1@: 160 µs
Execution Time Basic Instructions: 0.016 µs min.;
Special Instructions: 0.048 µs min.
Basic Instructions: 0.04 µs min.;
Special Instructions: 0.06 µs min.
Interrupts I/O Inter-
rupts and
External
Interrupts
Interrupt task startup time: 26 µs or 17 µs
*2
(30 µs for
unit version 1.0)
Return times to cyclic tasks: 11 µs or 8 µs
*2
(15 µs for
unit version 1.0)
Interrupt task startup time: 31 µs
Return times to cyclic tasks: 10 µs
Scheduled
Interrupts
Minimum time interval: 0.2 ms or 0.1 ms
*2
(set in 0.1-ms increments)
Minimum time interval: 0.4 ms (set in 0.1-ms increments)
Interrupt task startup time: 22 µs or 13 µs
*2
(27 µs for
unit version 1.0)
Return time to cyclic task: 11 µs or 8 µs
*2
(15 µs for unit
version 1.0)
Interrupt task startup time: 30 µs
Return time to cyclic task: 11 µs
Maximum Number of Connectable Units Total per CPU Rack or Expansion Rack: 10 Units max.;
Total per PLC: 40 Units max.
Basic I/O Units No limit
However, a maximum of two CJ1W-INT01 Interrupt Input Units can be mounted.
Special I/O Units Units for up to 96 unit numbers can be mounted. (Unit numbers run from 0 to 95. Units are allocated between 1 and
8 unit numbers.)
CPU Bus Units CJ2H-CPU6@-EIP: 15 Units max.
CJ2H-CPU6@: 16 Units max.
CJ2M-CPU3@: 15 Units max.
CJ2M-CPU1@: 16 Units max.
Pulse I/O Modules ---
2 max.
*3
Slots for which interrupts
can be used
CJ2H-CPU6@-EIP: Slots 0 to 3 on CPU Rack
CJ2H-CPU6@: Slots 0 to 4 on CPU Rack
Slots 0 to 4 on CPU Rack
Maximum Number of Expansion Racks 3 max.
CIO Area I/O Area 2,560 bits (160 words): Words CIO 0000 to CIO 0159
Link Area 3,200 bits (200 words): Words CIO 1000 to CIO 1199
Synchronous Data Refresh
Area
1,536 bits (96 words): Words CIO 1200 to CIO 1295 ---
CPU Bus Unit Area 6,400 bits (400 words): Words CIO 1500 to CIO 1899
Special I/O Unit Area 15,360 bits (960 words): Words CIO 2000 to CIO 2959
Pulse I/O Area --- 20 inputs, 12 outputs (CIO 2960 to CIO 2963)
Serial PLC Link Words --- 1,440 bits (90 words): Words CIO 3100 to CIO 3189
DeviceNet Area 9,600 bits (600 words): Words CIO 3200 to CIO 3799
Internal I/O Area 3,200 bits (200 words): Words CIO 1300 to CIO 1499 (Cannot be used for external I/O.)
37,504 bits (2,344 words): Words CIO 3800 to CIO 6143 (Cannot be used for external I/O.)
Work Area 8,192 bits (512 words): Words W000 to W511 (Cannot be used for external I/O.)
Holding Area 8,192 bits (512 words): Words H000 to H511
Bits in this area maintain their ON/OFF status when PLC is turned OFF or operating mode is changed.
Words H512 to H1535: These words can be used only for function blocks. They can be used only for function block
instances (i.e., they are allocated only for internal variables in function blocks).
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