2

CJ1M-CPU1

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Specifications

Common Specifications

Item

Specifications

Control method

Stored program

I/O control method

Cyclic scan and immediate processing are both possible.

Programming

LD (Ladder), SFC (Sequential Function Chart), ST (Structured Text), Mnemonic

CPU processing mode

CJ1M CPU Units: Normal Mode or Peripheral Servicing Priority Mode

Instruction length

1 to 7 steps per instruction

Ladder instructions

Approx. 400 (3-digit function codes)

Execution time

• CJ1M CPU Units (CPU12/13/22/23):

Basic instructions: 0.10

μs min.

Special instructions: 0.15

μs min.

• CJ1M CPU Units (CPU11/21):

Basic instructions: 0.10

μs min.

Special instructions: 0.15

μs min.

Overhead time

• CJ1M CPU Units (CPU12/13/22/23): 0.5 ms min.

• CJ1M CPU Units (CPU11/21): 0.7 ms min.

Unit connection method

No Backplane: Units connected directly to each other.

Mounting method

DIN Track (screw mounting not possible)

Maximum number of connectable

Units

CJ1M CPU Units:

Total of 20 Units in the System, including 10 Units on CPU Rack and 10 Units on one Expansion Rack.

Maximum number of Expansion

Racks

• CJ1M CPU Units (CPU 13/23 only):

1 max. (An I/O Control Unit is required on the CPU Rack and an I/O Interface Unit is required on the Expansion Rack.)

• CJ1M CPU Units (CPU11/12/21/22):

Expansion is not possible.

Number of tasks

288 (cyclic tasks: 32, interrupt tasks: 256)

With CJ1M CPU Units, interrupt tasks can be defined as cyclic tasks called "extra cyclic tasks." Including these, up to 288 cyclic

tasks can be used.

Note: 1. Cyclic tasks are executed each cycle and are controlled with TKON(820) and TKOF(821) instructions.

2. The following 4 types of interrupt tasks are supported.

Power OFF interrupt tasks: 1 max.

Scheduled interrupt tasks: 2 max.

I/O interrupt tasks: 32 max.

External interrupt tasks: 256 max.

Interrupt types

Scheduled Interrupts:

Interrupts generated at a time scheduled by the CPU Unit's built-in timer. (See note. 1)

I/O Interrupts: Interrupts from Interrupt Input Units.

Power OFF Interrupts (See note 2.): Interrupts executed when the CPU Unit's power is turned OFF.

External I/O Interrupts: Interrupts from the Special I/O Units or CPU Bus Units.

Note: 1. CJ1M CPU Units: Scheduled interrupt time interval is 0.5 ms to 999.9 ms (in increments of 0.1 ms), 1 ms to 9,999 ms

(in increments of 1 ms), or 10 ms to 99,990 ms (in increments of 10 ms)

2. Not supported when the CJ1W-PD022 Power Supply Unit is mounted.

Function blocks (CPU Unit with

unit version 3.0 or later only)

Languages in function block definitions: ladder programming, structured text

CIO

(Core I/O)

Area

I/O Area

1,280: CIO 000000 to CIO 007915 (80 words from CIO 0000 to CIO 0079)

The setting of the first word can be changed from the default (CIO 0000) so that CIO 0000 to

CIO 0999 can be used.

I/O bits are allocated to Basic I/O Units.

The CIO Area can be used as

work bits if the bits are not

used as shown here.

Link Area

3,200 (200 words): CIO 10000 to CIO 119915 (words CIO 1000 to CIO 1199)

Link bits are used for data links and are allocated to Units in Controller Link Systems.

CPU Bus Unit Area

6,400 (400 words): CIO 150000 to CIO 189915 (words CIO 1500 to CIO 1899)

CPU Bus Unit bits store the operating status of CPU Bus Units.

(25 words per Unit, 16 Units max.)

Special I/O Unit Area

15,360 (960 words): CIO 200000 to CIO 295915 (words CIO 2000 to CIO 2959)

Special I/O Unit bits are allocated to Special I/O Units. (10 words per Unit, 96 Units max.)

Note: Special I/O Units are I/O Units that belong to a special group called "Special I/O Units."

Example:CJ1W-AD081 Analog Input Unit

Serial PLC Link Area

(CJ1M CPU Units only)

1,440 (90 words): CIO 310000 to CIO 318915 (words CIO 3100 to CIO 3189)

DeviceNet Area

9,600 (600 words): CIO 320000 to CIO 379915 (words CIO 3200 to CIO 3799)

DeviceNet bits are allocated to Slaves for DeviceNet Unit remote I/O communications when the

Master function is used with fixed allocations.

The following words are allocated to the Master function even when the DeviceNet Unit is used

as a Slave.

Fixed allocation

setting 1

Outputs: CIO 3200 to CIO 3263

Inputs: CIO 3300 to CIO 3363

Fixed allocation

setting 2

Outputs: CIO 3400 to CIO 3463

Inputs: CIO 3500 to CIO 3563

Fixed allocation

setting 3

Outputs: CIO 3600 to CIO 3663

Inputs: CIO 3700 to CIO 3763

Fixed allocation

setting 1

Outputs: CIO 3370 (Slave to Master)

Inputs: CIO 3270 (Master to Slave)

Fixed allocation

setting 2

Outputs: CIO 3570 (Slave to Master)

Inputs: CIO 3470 (Master to Slave)

Fixed allocation

setting 3

Outputs: CIO 3770 (Slave to Master)

Inputs: CIO 3670 (Master to Slave)