WECON - Wecon

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* **RS422**

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**✎Note:**

* HMI COM3 is available in PI8000 series and COM3 is in COM2(hardware PIN 7 and PIN 8) .

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* If PLC <= 20 points,such as LX3V-1208/LX3V-0806 PLC,PLC RS485A and RS485B mean PLC COM2 RS485+ and RS485- .PLC COM2 can support modbus. Please refer to PLC COM2 setting manual.

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[[https:~~/~~/drive.google.com/drive/folders/13rgso7oUlatZQN_SNEcJCcN4toEdDPoP?usp=sharing>>url:https://drive.google.com/drive/folders/13rgso7oUlatZQN_SNEcJCcN4toEdDPoP?usp=sharing]]

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{{id name="HHMIsettings"/}}**HMI settings**

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**Download PIStudio Software**

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Please visit the link below to get the latest version PIstudio for HMI programming:

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* [[Download link>>url:https://docs.we-con.com.cn/bin/view/PIStudio/Download/3%20Software/]]

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**Create a new HMI project connect with PLC**

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Check the link below for the video to show you how to get started with a new project

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* [[Video>>url:https://youtu.be/0FpmDZe_8U8]]

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For more videos, please visit our Youtube channel: [[http:~~/~~/www.youtube.com/user/Wecon2004/videos>>url:http://www.youtube.com/user/Wecon2004/videos]]

**General**

HMI could communicate with PLC and support many PLC protocols. It is easy to operate and set communication parameters. This demo shows how to make a communication with PLC device, use WECON LX3V Series PLC as an example.

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**Protocol settings**

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The communication between two devices requires a protocol. The following contents show the steps of protocol settings.

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Please select the protocol, when creating a new project.

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1. Select the COM port for communication;

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1. PLC type: It means PLC brand, like WECON;

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1. PLC model: It shows the model of PLC, such as LX3V;

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If you want to change the protocol for existing project, please click [Program] → [Communication] to open the [Communication] windows, shown as the following figure.

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The steps to change the protocol for project are as follows.

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1. Click [Setting] to open the [Communication device] window;

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1. Select communication port, such as COM1;

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1. Select Serial port for communication, such as RS422;

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1. Select device type (device brand), such as WECON;

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1. Select the protocol for communication, such as WECON LX3V;

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**Parameter settings**

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The parameters settings are in [Communication] window, shown as following below.

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1. Click [Setting] to open the [COM port setting] window;

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1. Set the parameters such as [connection], [Baud rate] and so on;

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1. Click [Setting] to open [Timeout] setting window, you could set the parameters according your requirements, or just use the default value.

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**Set PLC address in HMI screen**

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1. Place the objects to HMI screen;

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1. Double-click the object to open the setting window;

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1. Click “Edit” to open the address setting windows;

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1. Connection: select the serial port in HMI;

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1. Address type: All the PLC address types will be display in this list, such as M;

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1. Address No.: Please input the number of this address, such as 0;

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**HMI Compilation Download**

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**Communication cable**

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In order to ensure the stability of communication, please use the twisted-pair communication cable with good grounding. The following figure shows the pin out definition.

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**HMI communication PLC use Modbus **

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* HMI setting: [[https:~~/~~/docs.we-con.com.cn/bin/view/PIStudio/12.PLC%20protocols/>>url:https://docs.we-con.com.cn/bin/view/PIStudio/12.PLC%20protocols/]]

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* PLC setting: [[https:~~/~~/docs.we-con.com.cn/bin/view/PLC%20Editor/8.1.%09Communication/>>url:https://docs.we-con.com.cn/bin/view/PLC%20Editor/8.1.%09Communication/]]

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{{id name="HPLCsettings"/}}**PLC settings**

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**Download PLC Software**

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Please visit below link to get the latest version PLC Editor for HMI programming

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* LX3V:[[Download link>>url:https://docs.we-con.com.cn/bin/view/PLC%20Editor/10%20Hardware%20/Software/]]

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* LX5V:[[Download link>>url:https://docs.we-con.com.cn/bin/view/PLC%20Editor2/Download/03%20Software/]]

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**Start a new PLC project**

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Start a new PLC project by clicking “New” on the left top corner of screen, select the PLC mode from the drop-down list.

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**Add a new instruction **

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Double click on the ladder, select the ladder symbol (instruction) from the drop-down list, then enter the address for this symbol.

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You could also select the ladder symbol from the menu bar directly.

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**Add comment to PLC program**

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**Add the statement to PLC program**

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Add the statement by single click on “Statement”, when finished, single click on “Statement” again to go back to Ladder edit.

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**Compile **

You need to compile the PLC program before downloading or running Off-line simulator. The background color will be changed from purple to white when there is no error.

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**Download setting **

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Click on “Transfer Setup” to select download mode.

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{{id name="Iimage-20220820150853-1.png"/}}[[image:xwiki_PIStudio_12.PLC+protocols_WebHome_98b1686a16c575ea.png||alt="image-20220820150853-1.png" height="713" width="1509"]] **Download PLC program to PLC**

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Quick select the parameters and main program of PLC program, then download to PLC, “Yes”-”Yes”-”OK”

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**Upload PLC program from PLC**

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Read the PLC program from PLC to computer.

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**Device monitor**

Monitor the value of certain address in PLC, double click “Current value” to change the value in this address.

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**Online monitor**

Monitor the each address in PLC by online monitor. Changing the state or value in PLC is also allowd.

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**Monitor edit**

In this mode, you could edit the PLC program during PLC is running.

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== {{id name="HLX5VA0Series"/}}**LX5V Series** ==

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This example introduces the establishment of serial port communication between Wecon HMI and LX5V, including three parts: PLC software configuration, HMI software configuration, and hardware wiring.

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**Software configuration of PLC**

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PLC programming software

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**New PLC project**

Click "New Project" and select the PLC model.

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**Set Serial port parameters**

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Follow the steps below to configure Serial port parameters.

* Baud rate：115200

* Data bit：8

* Stop bit：1

* Parity：No verification

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**Registers list**

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**HMI software configuration**

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HMI programming software

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**New HMI project**

Click New Project and select the HMI model.

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Set communication port parameters

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Click the communication configuration button on the left to find the communication protocol with LX5V. After selecting the protocol, configure the communication parameters of the COM port.

* Baud rate：115200

* Data bit：8

* Stop bit：1

* Parity：No verification

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**hardware connection**

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Hardware wiring diagram

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This example introduces WeconHMI with LX5V PLC to establish communication through serial port. The connection diagram is as follows:

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The above are all the steps for establishing serial port communication between Wecon HMI with LX5V PLC.

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== {{id name="HLX5V-NEthernet"/}}**LX5V-N Ethernet** ==

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{{id name="cke_bm_147709S"/}} This example introduces the establishment of Ethernet communication between Wecon HMI and LX5V, including three parts: PLC software configuration, HMI software configuration, and hardware wiring.

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**Software configuration of PLC**

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**PLC programming software**

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**New PLC project**

Click New Project and select the PLC model.

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**Set Ethernet port parameters**

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Follow the steps below to configure Ethernet parameters

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* PLC IP address：192.168.39.200

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* default gateway：192.168.39.1

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* subnet mask：255.255.255.0

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**Registers list**

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**HMI software configuration**

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HMI programming software

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**New HMI project**

Click New Project and select the HMI model.

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**Set communication port parameters**

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Click the project setting button on the left to configure the IP address of the HMI machine to ensure that the HMI and PLC IP remain in a local area network.

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* HMI IP address：192.168.39.201

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* Default gateway：192.168.39.1

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* Subnet mask：255.255.255.0

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Next, click Communication Settings to configure the IP of the HMI communication object.

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**Hardware connection**

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This example introduces WeconHMI with LX5V-N PLC to establish communication through ethernet. The connection diagram is as follows:

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The above are all the steps for establishing ethernet communication between Wecon HMI with LX5V PLC.

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