2014年5月23日星期五

New version LX2N plc coming with brand new appearing

    It has been some years since LX2N plc come out, Wecon is never satisfied with status quo. Now LX2N plc has come to its end, and coming brand NEW models. 

    The  new version of LX2N plc is LX3V, it takes new mould, brand new appearing. USB download and other online functions have been added. Additionally, NEW 40 I/O plc will support Wecon plc modules, while there is only 60 I/O plc support them.

    The pictures are as follows:

New mould, brand new appearing
USB download and other online functions have been added
Support Wecon plc modules
 
 
    At present, the available models of LX3V plc are 32 I/O and 40 I/OProduction of LX2N plc will be stopped,  customers can take LX3V instead of LX2N plc. Thanks for the support of Wecon's customers, Wecon will keep on moving with you.
 

2014年5月19日星期一

WECON hmi touch screen in Threading Machine

The threading machine is also called the tapping machine. It is a kind of fabricating machinery used to cut or form threads, screws, or jaws inside through holes or blind holes of various specifications, such as the body case, equipment surface, nut, and flange plate.

(1) Classifications
According to different driving sources, threading machine can be divided into manual threading machine, pneumatic threading machine, electric threading machine, mechanical mold threading machine and hydraulic threading machine; according to the axis number of the threading machine, it can be divided into single-axis threading machine, two-axis threading machine, four-axis threading machine, six-axis threading machine, and multi-axis threading machine; according to different types of machining parts, the threading machine can be also classified into the mold threading machine, universal threading machine, thermal nut threading machine, flange nut threading machine, round nut threading machine, hex nut threading machine, blind nut threading machine, anti-theft nut threading machine; according to the machining automation degree of the threading machine, it can be divided into full-automatic threading machine, semi-automatic threading machine, and manual threading machine; according to whether the threading machine can tap when it drills, the threading machine is as well divided into drilling threading machine, broaching threading machine, and special threading machine.


(2) System Functional Description
You can enter its tapping depth and thread, or use the touch screen to control its positive and negative rotation. Besides, you can monitor the drill rate, and the actual number of turns in order to increase the working efficiency, and reduce unnecessary trouble of changing the drill direction.

(3) Touch Screen System Features
The threading machine can be divided into four types:
A. Manual operation. Enter positive and negative numbers to servo through touch screen. The servo motor determines the positive or negative rotation. The external buttons close. Tapping stops.
B. Simplicity. The wire threading depth is equal to the number of turns, namely the number of forward turns is the same as that of reverse turns.
C. Precision. Rotate forward for 4 turns and backward for 1 turn. Return after reaching the preset number of turns. The purpose of reverse rotation is to clean up garbage at the drill head.
4 automatic presentation is to repeatedly execute the precision feature.
 



The speeds of tapping and withdrawing threading, as well as threading depth and pitch are set according to the process requirements.
Here you can see all the readings, including the threading drill direction.

(4) Function realization



Manual switch. Enter motor fixed lap 16 000; the motor speed, the pulse signal (address 1298) (external address 1298) and the number of turns are set. In pulsation, press the external switch (address 1567) 1567 rising time = HDX3.0, falling time HDW = 6.0. It begins to rotate, or stops after going 16,000 laps. Enter approximate negative 16,000 for manually reverse and forward rotation. 
 

For simplicity button, when the number of turns and the velocity pulse are equipped, and the external switch is 1567NO, the number of forward turns is equal to that of reserve turns. It rotates until it hits specified numbers of forward and reserve turns.





For Precision button, it refers to four forward turns and one backward turn so that debris wouldn’t pile up. It still needs the pulse model, the number of turns, depth and pitch.









The so-called automatic demonstration is to repeat the precise process, unless the external signal is OFF.






(5) Conclusion
A. It is equipped with text display and the servo so that you can achieve manual operation but cannot realize automatic operation.
B. It has text, PLC and the servo, so the cost is high.
C. It has touch screen, and the servo, which omits the PLC cost, and also looks better than the text display.
The threading machine is cheap. Just the servo coordinates with the touch screen. Currently merchants would like to maximize the benefits. In addition, the class of touch screen is a little bit higher than that of text display. With PLC omitted, it is much more affordable. The operation is simple as well. It can operate only when you enter threading speed, wire retreating speed, depth, pitch and speed reduction ratio. The manual and automatic modes can be switched. it is human and considers diversified choices.

2014年5月11日星期日

The Application of modbus TCP in hmi

Ⅰ. Reasons for WECON hmi choosing modbus TCP/IP
1. The application layer of WECON HMI makes use of Modbus TCP, which makes industrial Ethernet data exchange achievable.
2. It’s easier to interconnect with different systems: available to management network, real-time monitoring network and field devices communication.
3. Low cost of network’s implementation: available to apply a common network component.
4. High data rate: high transmission capacity, the transmission result of 100M Ethernet is 4000 Modbus TCP messages per second, while each message can transfer 125 words, which is equivalent to 4000×125=500000 analog data (8000000 switch).
  
Ⅱ. Parameter Settings
   The case here PC is set as Slave(lower computer), and touch panel as Master(upper computer).In this way, PC can communicate with HMI.
   The IP address of PC is set: 192.168.1.2. The two screens of project is edited by the use of WECON configuration software, the device type of one is chosen ModBus TCP Slave, the other is ModBus TCP Master.
   The project of Slave is downloaded to HMI and Master’s is simulated online.The network of HMI and PC are connected by communication cable.

 * Setting of HMI project
   The setting of communication port configuration: 
   The communication port is selected Ethernet and device type is ModBus TCP Slave. The Ethernet parameter is set: 192.168.1.2:502(this IP address should be the same to PC’s). The network type is set: TCP_Client_2N. The setting is as shown in figure 1.

 


 
Figure 1
    
HMI IP SETTING
 192.168.1.5(This IP is used for debugging to check whether it’s connected to PC or not).The setting is as shown in Figure 2


 


 
Figure 2
  The design of screen is as shown in Figure 3:
 

Figure 3


 * Setting of PC project
   The setting of communication port configuration: the communication port is selected Ethernet and device type is ModBus TCP Master.The Ethernet parameter is set: 192.168.1.201:502(As long as this IP address is different from HMI’s in the same network segment). The network type is set: TCP_Client_2N. The setting is as shown in figure 4.


 

Figure 4
  The design of screen is as shown in figure 5:


Ⅲ. Conclusion

  
 Modbus protocol is field-bus protocol which only consists of physical layer and data layer. It’s particularly suitable for the application situation with simple architecture and low cost. Through supporting Modbus TCP/IP protocol, WECON touch panel is able to communicate with PC and other devices.It not only reduces the cost of system design, but also increases the versatility of the equipment, which provides convenience for users.

Note: The hmi in this application example is LEVI-777A



2014年5月4日星期日

A8 series industrial panel pc introduction

Wecon A8 series industrial panel pc ARM Cortex A8 720Mhz, 256 DDR3 memory, support up to 5 serial ports, RS232/RS485/RS422. A8 series industrial pc can re-install wince 7.0, linux and android systems.(Default system is wince 7.0, it's working smoothly under wince 7.0; android system is not as smooth as wince 7.0). There are 7", 10.2" and 10.4" for choices.
 

A8 Series industrial panel pc Hardware Features:
* ARM Cortex A8 720Mhz
* TFT true color LCD, with 65536 colors and brightness of up to 250 lumens; supporting 7-inch, 10.2-inch and 10.4-inch (4:3 LCD)
* TI 3359 cpu built-in PowerVR 3D/2D acceleration
* Flash large capacity storage, support 4G EMMC
* DDR3 with up to 256 memory
* Support Ethernet, ethercat, CAN bus
* Support 5 serial ports, RS232/RS485/RS422
* Support CAN bus
* Support Ethernet
* Wireless Ethernet (optional)
* sound card (optional)
* Support U disk, SD card
 
A8 series industrial pc with wince 7.0 system (all product quotations in our company are free of license fees), the standard system configuration is as follows:
* WINCE 7.0 system
* Support. NET Framework3.5
* IE browser (optional)
* RDP function (Remote Desktop) (optional)
* OPC SERVER (optional)
* WIFI wireless Ethernet (optional)
* Serial Driver (RS232/RS485/RS422), can support up to 921600 baud
* USB mouse, keyboard, ergonomic devices (e.g. scanner)
* USB mini printer (South Korea SEWOO brand) (optional)
* FTP SERVER (optional)
* CITRIX client (optional)
* HTTP SERVER (optional)
* Media Player (optional)
* Silverlight for Windows Embedded (optional): the powerful functions of Silverlight provides some tools for developers and UI designers;  the separation between UI and business logic is conductive to iterative processing device and application program UI, and also does not affect the core development tasks.
* Flash 10.1 (optional): Flash 10.1 integrated in browser supports playing Flash, and can run Flash content full-screen without the presence of browser UI.
* Connection Manager and Windows Device Stage (optional): Connection Manager provides the basic framework technology for a variety of network transmission of management devices. By using Windows Device Stage, users can easily transfer media and content between devices and PC.
* Microsoft Office and PDF viewer (optional): updated application can render Microsoft Office Word, PowerPoint, Excel and Adobe PDF content, and also support Microsoft Office 97, 2000, 2003, XP and 2007.
* Support the dynamic switch between English and Chinese
* CEPC System built-in configuration tool
* ACTIVESYNC dynamic debugging tool
Note: Optional represents that WINCE system kernel-image can be customized according to users’ needs.
 

More information about A8 series industrial panel pc in Linux and Android system, please check our product

http://www.we-con.com.cn/en/news/20140422/184.html