The Ease of Changing Designs Makes It Simple to Add or Upgrade Equipment.

There is little effect on address changes. Previously, when data was exchanged by address specifi cation and addresses were changed, the program had to be changed at other Controllers and various operations, such as memory checks, had to be performed. Now, tag names eliminate the dependence on a memory map and the need for checking items affected by changes. This allows equipment to be easily added or upgraded.

Programmable Terminal

Host application

NS Series

 

 

 

No change required.

 

No change required.

 

 

 

Even after the change, the number of items produced is acquired correctly from H200.

Number_produced

Accessed by tag name

Number_produced

EtherNet/IP

What is Tag Access?

NEW

 

CJ2 CPU

tag name

address

A tag is a name given to an address. Tags are

Number_produced

Change With the CX-Programmer, the ad- dress for the tag named “Number

produced” is changed from D100 Number_produced to H200.

D100

Change

H200

managed in the CJ2 CPU Unit, where they are defi ned as network symbols. The common user- defi ned tag names are used from Programmable Terminals and host applications to access memory in a CJ2 CPU Unit without knowing the actual

Assurance of Quality, Free from Mistakes.

Tags can be shared among the CJ2 CPU Units, NS-series PTs and Middleware. Tag names can be shared among controllers that exchange data using the CX-One or Excel import/export functions. Because redundant address entry and address allocation are not needed, checking is also not required. This makes it easy to construct high-quality systems.

Copy

 

 

 

 

 

 

 

 

 

 

 

 

&

 

 

 

 

 

 

 

 

 

 

 

 

Paste

 

 

 

 

CX-Programmer symbol table

 

 

 

 

 

 

 

 

 

 

CX-Programmer symbol tables can

 

 

 

 

 

be copied and pasted!

 

 

 

 

 

CX-Designer symbol table

 

 

 

 

 

memory address.

Programmable Terminal

Host application

NS Series

 

Programmable Terminal screen

Application

Created using tag names.

Developed using tag names.

Number_producedNumber_produced

 

EtherNet/IP

Accessed by tag name

Accessed by tag name

Number_produced

PAC ladder program

Data links using tag names

Developed using tag names.

 

CJ2 CPU

Data link design

CJ2 CPU

CJ2 CPU

 

Allocated using tag names.

 

 

Tags are managed in the CJ2 CPU Unit as network symbols.

 

Symbol Table

 

 

I/O Memory

 

Tag name

Physical address

 

Address

Data

 

Number_produced

D100

 

D100

&200

 

 

 

 

 

 

 

Production_target

D200

 

D200

&500

 

 

 

 

 

 

 

 

 

 

 

 

9

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Omron CJ2 manual What is Tag Access?, Programmable Terminal Host application NS Series
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CJ2 specifications

The Omron CJ2 series is a powerful and versatile family of programmable logic controllers (PLCs) that exemplify modern automation technology. Known for their robust performance and reliability, CJ2 controllers are widely used in various industries for controlling machinery, processes, and other automated systems.

One of the main features of the CJ2 series is its impressive scalability. The platform offers various models, allowing users to choose the right controller based on their application needs. The CJ2 series supports up to 64 I/O modules, providing ample flexibility for expanding system capabilities. Additionally, it supports more than 4096 I/O points with the right configuration, making it suitable for small to large-scale applications.

The CJ2 series leverages Omron's advanced Kinematics technology, which enhances motion control capabilities. This feature is particularly beneficial for applications requiring precise control over moving parts, such as robotics and material handling systems. The CJ2 can manage multiple axes simultaneously, allowing for complex multi-axis systems to be programmed easily.

Another key characteristic of the CJ2 is its high-speed processing. The controller is equipped with a fast CPU that delivers quick execution of logic programs and supports high-speed data processing, making it ideal for time-critical applications. The CJ2 series also incorporates a rich instruction set that supports various programming languages, including ladder diagram, structured text, and function block diagram, catering to the preferences and needs of different programmers.

Enhanced communication capabilities are another highlight of the Omron CJ2 series. It supports various fieldbus protocols, including Ethernet/IP, Profibus, and DeviceNet, allowing for seamless integration with other devices and systems. This connectivity enables users to build complex, coordinated systems that communicate effectively in real-time.

The CJ2 series also boasts robust diagnostics features, making it easier to troubleshoot and maintain installations. The controller can store extensive diagnostic information, helping users quickly identify issues within the system. Additionally, the CJ2's user-friendly programming environment simplifies the development process, allowing for rapid deployment.

In summary, the Omron CJ2 series stands out for its scalability, advanced motion control capabilities, high-speed processing, and enhanced communication features. These characteristics make it a go-to option for engineers and manufacturers seeking a reliable and flexible PLC solution to meet their automation needs. Its combination of performance, versatility, and user-friendly design cements the CJ2's reputation as a leader in the field of industrial automation.
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