Product Index :: Automation Systems :: Programmable Controllers :: Modular PLCs

Introducing the Flagship CJ2 CPU Units, with Built-in Multifunctional Ethernet Port

Features

Higher Precision for Machine Operation and Processing Quality

Lineup of High-speed Units 

In addition to the greater processing performance of the CPU Unit, OMRON has also improved the response performance of each Unit. Faster throughput from inputs and processing to outputs helps to improve equipment tact time and work processing quality.

Flexible Machine Control with Refined I/O Perform   NEW! 

• Improve real-time control

Improved Equipment Performance with Faster Unit I/O Response

• Faster Basic I/O Unit OFF Response Time: 90 μs

• High-speed Analog Conversion: 20 μs per Point (35 μs per Four Points)

Note: Conversion time per point.

• High-speed Positioning Starts in up to 0.1 ms*

Note: Starting time for first axis when all axes are stopped.
*When using a CJ2 CPU Unit.

Direct Processing for High-speed Units with Enhanced Immediate Refreshing

The addition of the immediate refreshing instructions for High-speed Units increases the I/O throughput speed.

• Analog I/O Direct Conversion Instruction
  Conversion for an Analog I/O Unit is immediately executed when a direct conversion instruction is executed in the CPU Unit. Refreshed data is read and used for control in real-time.

Note: Time per point.

Improved Interrupt Response for Finer Control with the High-speed Interrupt Function

• Shorter Minimum Interval for Scheduled Interrupts (100 μs*)

*Supported only for one scheduled interrupt task. Not supported for the peripheral (USB) port or serial port of the CPU Unit.

• Faster Interrupt Response Time for Input Interrupts (17 μs*)

*When using the high-speed interrupt function.

Advanced Motion Control with Low Cost and Easy Operation

Building Synchronized Systems Using Only Ladder Programming and No Special Controllers

The CJ2 covers a wide range of applications from positioning control to synchronized multi-axis control, so there is no need to use different Controllers depending on the difficulty of the motion operation. No expensive Motion Control Units are required, and so design efficiency is improved by sharing the development environment, and inventory management costs are reduced.

Wide Range of Support from Positioning Control to Synchronized Multi-axis Control    NEW! 

Up to 20 axes

• Standardize controllers for motion applications.

The CJ2 CPU Units can be combined with Position Control Units to support advanced applications.

• Build synchronized systems using only ladder programming and no special Controllers.

Synchronized control can be performed for up to 20 axes by using five Position Control Units.

Programming can also be easily performed simply by pasting an electronic cam function block into a synchronized interrupt task. (See note.)

Note: The electronic cam function block is provided with CX-One version 3.1 or the CX-One auto update for February 2009.

Synchronization from Inputs and Processing to Outputs    NEW! 

Synchronize the CPU Unit with CPU Bus Units and Special I/O Units.

Synchronize the Processing Timing between CPU Bus Units and Special I/O Units.    NEW! 

The CJ2 CPU Units now support Synchronous Unit Operation in which the CPU Unit synchronizes the start of processing by the CPU Bus Units and Special I/O Units. This enables using synchronized data refreshing to share data between the CPU Unit and CPU Bus Units/Special I/O Units and using synchronous interrupt tasks to process that data. In the future, the range of applications will expand with the release of more CPU Bus Units and Special I/O Units that support Synchronous Unit Operation. (These Units are called Synchronous Units).
 

Achieve Application Performance with a Synchronized Operation Cycle at the Maximum Speed of 1 ms with No Jitter

The CJ2 supports applications that require strict time management, such as electronic cam control, by using multi-axis control, which minimizes jitter from inputs and processing to outputs.

Faster and Higher-capacity CPU Units

Data Memory: 832 Kwords, Basic Instructions: 0.016 μs

High-capacity data memory is in demand to meet the need for quality control for equipment and products and to provide real-time processing and collection of measurement data. Large program capacity is also in demand due to the need for improving program reusability through modularization and structured programming.

Greatly Expanded Program Capacity and Data Memory Capacity

Ample support is provided for programming and data required for complicated control.

Additions to the Lineup Include Models without EtherNet/IP, Including Large-capacity Models.    NEW! 

• Program capacity: 400 Ksteps (1.6 times larger than before)

• Data memory capacity: 832 Kwords (2 times larger than before)

• Unit width: 49 mm

And, All CJ2 Models Have More Capacity Than CJ1 Models.

In addition, all models have more capacity than the equivalent CJ1-series models to meet needs for structured programming and increasing amounts of data.

High-speed Performance as a Controller

The CJ2 also provides flexible machine control with refined basic performance.

Ample Instruction Execution Performance for Machine Control.

The CJ2 fully responds to customer needs for improved tact time and increased information handling.

*The overhead processing time is 200 μs for the CJ2H-CPU6[]-EIP.

Faster Immediate Refreshing

20 Times Faster

Immediate refreshing of basic I/O is also faster. Real-time inputs and outputs during instruction execution are up to 20 times faster than before.

(Example: !LD instruction speed improved from 20 μs to 1 μs)

High Reliability in Operation

The CJ2 provides high reliability and dependability with corrective actions against unforeseen events.

Automatic User Memory Recovery

Finer memory production processes have been accompanied by problems such as bit corruption caused by cosmic rays. With the CJ2 CPU Units, corruption in the user program is detected and the program recovered in real-time before program execution.   This reduces equipment down time by minimizing the number of times that operation is stopped due to memory errors.

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See Related Products:

Programmable Controller     CJ2M High performance PLC great for basic machine automation. Up to 40 I/O units on any CPU.