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NJ400-Hardware system and technical characteristics
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*The information provided in this article is just a general description and feature introduction of the product. The content in this article may change with the further development of the product, and the right of interpretation belongs to Nanda Automation Technology Co., Ltd.

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NJ400 hardware system

NA400 hardware system includes controller module, event sequence recording module, general I/O module, communication processing module, backplane and system power supply. All modules are installed on the backplane.

 

 

Controller module:

That is, the CPU module is installed on the local backplane, and there are two types of support for redundancy and non-redundancy. The controller has built-in 10/100Mbps Ethernet, dual serial port communication interface, and the internal bus is led out through the local backplane, which is convenient for hot plugging the controller.

 

SOE event sequence recording module:

Provides SOE event sequence recording function with a resolution of 1ms.

 

Common I/O module:

It can be installed on the local backplane and expansion backplane, and communicates with the controller through the high-speed internal bus.

 

Communication processing module:

Can be installed on the local backplane and expansion backplane for adding other communication protocols. The NA400 controller can communicate with third-party devices through various network protocols such as RS232/RS485, DeviceNet, Profibus-DP, Ethernet, and CANopen. If the NA400 control system is required to provide a certain communication function, just install the corresponding communication module on the backplane. Various types of communication modules can support most mainstream network communication protocols.

 

Backplane:

Carriers for installing controllers, power modules, I/O modules, and communication modules, while supporting local high-speed bus expansion.

 

Power module:

The power module is installed on the backplane and supplies power to other modules. The power supply for on-site equipment should be additionally configured to ensure electrical isolation between the site and the system.

 
 

 

NJ400 technical characteristics

 

Far higher electromagnetic compatibility than other PLCs

The concept of electromagnetic compatibility runs through the entire development process from principle design, circuit board design to system structure design. Most of the EMC indicators exceed the level of the international standard level 3, and the static electricity and fast transients have reached the level of level 4.

 

Fieldbus technology

NJ-PLC uses a field bus network, in addition to the characteristics of fast communication rate, strong anti-interference ability, low cost, simple structure, good real-time performance and so on. It also has good scalability, easy to achieve flexible configuration of the module, greatly improving the adaptability to the site environment and installation requirements.

 

Network programming and debugging

NA-PLC uses unified programming and debugging software. Provide 10/100M Ethernet as a programming and debugging interface, provide program download and online online debugging functions. Support remote programming and debugging through Ethernet to meet the modification and online maintenance of the control flow of local control devices in remote control centers.

 

Direct satellite synchronous clock interface

Directly connect the satellite clock signal of DC24V level to the connection terminal without maintenance. The event time scale is generated by the event sequence recording module, and the time is more accurate.

 

Sequential control chart programming technology

Sequential control chart programming language designed with "what you see is what you get" technology is a visual programming language, which is very suitable for complex sequential control process. It is very similar to the control flow designed by the design unit. When the control flow design is completed, it means the end of programming, the programming process is simple and easy to learn. In addition, programs written in various languages can call each other, making program writing more flexible and convenient, and can meet the requirements of a variety of complex working conditions. Support sequential control chart configuration and operation, graphical display, single-step execution, locking and unlocking. The pre-compilation of the sequence control chart ensures the correct execution of the program.

 

Powerful serial communication function

Serial communication module: The number of serial communication modules can be freely configured. Each serial communication module provides up to 4 serial ports. Each serial port supports RS485 interface standard, MODBUS RTU master-slave protocol, and all support programmable methods.

 

 


 

Features

 

NJ400 Hot Standby Features

The hot standby function is completed automatically without configuration.

The hot backup rate of 100Mbps completes all data exchange within one scan cycle.

The main frequency is up to 266MHz.

Program download: Only one download is required to complete program transmission quickly and efficiently.

The hot standby switching time is shorter by 10-50ms.

Only two CPU modules need to be configured, and they are redundant for each other, without hot standby modules.

 

Hot standby CPU data exchange mechanism

Data is automatically transferred from the main CPU to the standby CPU.

Data is exchanged at the beginning of each scanning cycle.

The data transfer and PLC program synchronous execution transfer time is greatly shortened.

 
 

Multiple mechanisms improve reliability

Automatic switching between the main station and the standby station without human intervention.

All modules support hot swapping.

All modules can be replaced without stopping and powering down the system.

The switching of the system can be completed by a dedicated instruction (SWITCH), and the switching conditions can be controlled.

A large number of registers provide redundant system status and other information to facilitate fault diagnosis.

Fault-tolerant mechanism, single substation failure, the overall switch between bus and control station will not occur.

 

 


 

NJ400 shell selection

 

Aluminum alloy shell appearance >>>

 

Plastic shell appearance >>>

 

 

 

*The information provided in this article is just a general description and feature introduction of the product. The content in this article may change with the further development of the product, and the right of interpretation belongs to Nanda Automation Technology Co., Ltd.

 

 

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*The information provided in this article is just a general description and feature introduction of the product. The content in this article may change with the further development of the product, and the right of interpretation belongs to Nanda Automation Technology Co., Ltd.


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Time of issue:2020-06-24 00:00:00

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Time of issue:2020-06-24 00:00:00

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Time of issue:2020-06-22 00:00:00

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