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Giới thiệu bộ lập trình nhúng Linux PAC-LX-9000 hãng ICP DAS

CÔNG TY TNHH THIẾT BỊ ĐO LƯỜNG VÀ ĐIỀU KHIỂN 11/04/2023

Nowadays, Linux has been adopted widely by many users because of the properties of stability, open source, and free of charge. In the mean while, owing to the great supports from more and more companies and the mature development, Linux is now becoming one of the most popular OS on the market.

Furthermore the hardware requirements of Linux OS in embedded system is not high, just only 386 CPU or better and 8 MB RAM. Therefore, besides Win CE of Microsoft, Linux has been already become another good choice in embedded OS.



The LX-9000 is new generation Linux-based PAC from ICP DAS and is equipped with a powerful CPU module running a Linux kernel 4.x operating system, various communication interfaces (VGA, USB, Ethernet and RS-232/485) and slots for both high performance parallel bus type (high profile I-9K series) and serial bus type (high profile I-97K series) I/O modules.
Compared with the first generation LX-9000, not only is the CPU performance improved have been added (1.75 ~ 1.91 GHz, quad core) and support Linux kernel 4.x, but many reliability features, such as dual LAN, redundant power input, and dual battery backup SRAM, etc., making the LX-9000 one of the most powerful systems available.

Software Features

The SFTP/FTP server is used for uploading applications or downloading data. And SSH/Telnet is designed for managing the LX-9000. By using the FTP server and SSH/Telnet, you can update and manage the LX-9000 remotely via the Ethernet.

ICP DAS provides the library file - libi8k.a which includes all the functions of the I-7000/9000/97k series modules. Users just install LinPAC SDK and develop LX-9000 applications easily by GNU C Language. Apart from that, users can also use Java to develop LinPAC applications as well.

Hardware Features

Powerful CPU Module

The most important features of the CPU module are:

E3827 (1.75 GHz, dual core) for LX-9x71 series
  1. E3845 (1.91 GHz, quad core) for LX-9x81 series

  • Built-in VGA and HDMI Port

A built-in VGA and HDMI port can be directly connected to a regular LCD display. Users can operate the HMI or SCADA software with display, keyboard and mouse just as how they usually did on regular PCs.

  • 64-bit Hardware Serial Number

The 64-bit hardware serial number is unique and individual. Every serial number of LX-9000 is different. Users can add a checking mechanism to their AP to prevent software from pirating.

  • Rich I/O Expansion Ability (RS-232/485, Ethernet, FRnet, CAN)

Beside the local I/O slots, LX-9000 also equips several RS-232/485 ports, two Ethernet ports to connect serial I/O and Ethernet I/O. And with FRnet and CAN communication module in local slot, FRnet I/O and CAN devices are easy to be integrated.

  • Dual Watchdog Timer

A system could be hanged up when the OS or the AP fails. There are two watchdogs (OS watchdog and AP watchdog) designed to automatically reset the CPU when the situations happen. The design will increase the reliability of the system.

  • Dual Ethernet Ports

LX-9000 provides two Ethernet ports. The two Ethernet ports can be used to implement redundant Ethernet communication and separate Ethernet communication (one for global Internet, one for private Ethernet).

  • Rugged RJ-45 connector for LAN1

The LX-9000 is equipped with a rugged and dustproof RJ-45 connector on the LAN1 port that is able to provide protection against both liquid and dust contaminants in harsh industrial environments, as well as protection against vibration and shock.

  • Metal Enclosures

Superior resistance to the weather and external interference. Easier grounding and better static protection.

  • Redundant Power Inputs

To prevent the LX-9000 from failing by the power loss, the power module is designed with two inputs. The LX-9000 can keep working even one power input fails, and mean while there is a relay output for informing the power failure.

  • Fanless Design with Wide Operating Temperature Range

With the fanless design for embedded applications, the operating temperature range is -25°C to +75°C for the LX-9x71 series, as well as -25°C to +60°C for the LX-9x81 series..

Standard LX-9000 (Linux Kernel Inside)

The controller supports following software development tools:
LinPAC SDK for Linux environment

Model OS CPU System Memory Non-Volatile Memory Storage VGA
Resolution
Ethernet
Port
USB Port RS-232/
RS-485
I/O Slot
LX-9171  Linux kernel 4.14.12 E3827,
1.75 GHz, dual core
2 GB DDR3 SDRAM  512 KB MRAM,
16 KB EEPROM
32 GB SSD,
16 GB CF card 

1280 × 1024 to 1920 × 1080 for 16:9 display ;
640 × 480 to 1024 × 768 for 4:3 display

2 4 4 1
LX-9371  3
LX-9771  7

Standard LX-9000 (Linux Kernel Inside)

The controller supports following software development tools:
LinPAC SDK for Linux environment

Model OS CPU System Memory Non-Volatile Memory Storage VGA
Resolution
Ethernet
Port
USB Port RS-232/
RS-485
I/O Slot
LX-9181  Linux kernel 4.14.12 E3845,
1.91 GHz, quad core
4 GB DDR3 SDRAM  512 KB MRAM,
16 KB EEPROM
32 GB SSD,
16 GB CF card 

1280 × 1024 to 1920 × 1080 for 16:9 display ;
640 × 480 to 1024 × 768 for 4:3 display

2 4 4 1
LX-9381  3
LX-9781  7

Remote I/O Expansion

Ethernet

The available Ethernet I/O devices are ET-7000, ET-7200, ET-87P4/8-MTCP and I-8KE4/8-MTCP. The PAC can access them in Modbus/TCP protocol. A nModbus.dll is provided for C#, VB.net programming.

RS-485

The PACs are equipped with the RS485 COM ports which enable the transmission rate up to a maximum of 115.2 Kbps. The medium for connection is a twisted-pair, multi-drop, 2-wire RS-485 network that can link I-7000, M-7000, RU-87Pn with high profile I-87K modules. To access M-7000, a nModbus.dll is provided for C#, VB.net programming. To access I-7000 and RU-87Pn with high profile I-87K modules, PACSDK is provided for C#, VB.net, VC and VB programming.

FRnet

FRnet is an innovative industrial field bus that has many special features, such as high-speed deterministic I/O control, real I/O synchronization capabilities, non-protocol communication, and easy programming. With a FRnet communication module (I-8172W), the PAC can link FRnet I/O modules to implement high-speed distributed I/O (FR-2000 series). To access I-8172W, a pac_i8172w.dll is provided for C#, VB.net, VC and VB programming.

CAN Bus

The Controller Area Network (CAN) is a serial communication way, which efficiently supports distributed real-time control with a very high level of security. It provides the error-processing mechanisms and concepts of message priority. These features can improve the network reliability and transmission efficiency. Furthermore, CAN supplies the multi-master capabilities, and is especially suited for networking“intelligent” devices as well as sensors and actuators within a system or a sub-system. With I-8123, I-8124, I-87120, the PAC is able to demonstrate every feature of CAN, CANopen, and DeviceNet.

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