1 Communication

This example introduces the establishment of Ethernet communication between Wecon V-box and Allen-Bradley L1769. It is introduced through three parts: PLC software configuration, V-box software configuration, and hardware wiring.

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== **Software configuration of PLC** ==

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=== **PLC programming software** ===

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[[image:image-20220714113935-3.png]]

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=== **New PLC project** ===

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Click New Project and select the PLC model.

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[[image:image-20220714114247-4.png]]

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[[image:image-20220714114257-5.png]]

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=== **Set Ethernet parameters** ===

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Follow the steps below to configure Ethernet parameters

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PLC IP address：192.168.40.101

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default gateway：192.168.40.1

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subnet mask：255.255.255.0

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[[image:image-20220714115012-6.png]]

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== **V-box software configuration** ==

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=== **V-box programming software** ===

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[[image:image-20220714115214-7.png]]

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=== **Configure device network** ===

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Click the Configuration Download button[[image:image-20220714115308-8.png||height="22" width="15"]], It is used to configure the device network, update the device time, obtain the device machine code, check the device network, etc.

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In the example below, the IP address of V-Box is configured as 192.168.40.66, and the networking method is 4G connection.

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[[image:image-20220714115440-9.png||height="425" width="791"]]

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== **V-net add device** ==

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Open VNET client software → add device. As shown in the figure below, click "+" in the order of steps, and the Add Device window will pop up, enter the device machine code/product code, device password, and device alias to add the device.

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[[image:image-20220714115640-10.png||height="430" width="797"]]

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=== **Set communication port parameters** ===

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In the device list on the left, find the Vbox that communicates with the L1769, click it and select configuration,communication port configuration in the main interface to add a communication protocol.

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[[image:image-20220714115848-11.png||height="432" width="802"]]

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The communication port is selected as Ethernet, the device type is selected as Allen-Bradley, the protocol is Allen-BradleyMicro850_FreeTag EthemetIP, and the IP is the internal IP address of the L1769 PLC. The port number is 44818.

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[[image:image-20220714143820-1.png]]

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After adding the protocol Allen-BradleyMicro850_FreeTag, click[[image:image-20220714143838-2.png]]icon add label.

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[[image:image-20220714143849-3.png]]

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== Engineering production ==

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== **Siemens S7-1200** ==

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[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communicate%20with%20S7-1200%20via%20Ehernet.zip]]

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== **Allen-Bradley Ethernet DF1** ==

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[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Allen-Bradley%20Ethernet%20DF1.zip]]

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== **Communication with S7-200 Smart** ==

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[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communication%20with%20S7-200%20Smart.zip]]

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== **Delta DVP Ethernet** ==

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[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Delta%20DVP%20Ethernet.zip]]

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== **Delta DVP Serial Protocol** ==

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[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Delta%20DVP%20Ethernet.zip]]

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== **Communicate with Mitsubishi FX Series** ==

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[[download link>>url:https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communicate%20with%20Mitsubishi%20FX%20Series.zip]]

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== **Communicate with VB inverter** ==

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[[download link>>url:https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communicate%20with%20VB%20inverter.zip]]

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== **Omron CP1 Series** ==

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[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communication%20with%20ORMON%20CP1%20Series.zip]]

== **Omron CJ2M** ==

[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communication%20with%20ORMON%20CJ2M.zip]]

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= **2 User define protocol** =

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More serial port script instruction,please refer manual:[[Lua script function>>doc:V-BOX.V-Net.1\.User Manual.04 Lua Script.01 Lua Functions.WebHome]]~-~-->[[3.Serial port operation>>url:http://docs.we-con.com.cn/wiki/vbox/view/HMI/04.Lua%20script%20%20function%20and%20operation/01.Lua%20script%20function/#H3.Serialportoperation]]

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== **Read the temperature sensor.** ==

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the commond format is as beliow:

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Send commond:01 03 02 00 00 03 04 73

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Feedback commond:01 03 06 07 F7 0E 7E B7 35

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Temperature data:07 F7,desimal = 2039,it means temperature is 20.39℃.

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Humidity data:0E 7E,desimal = 3710, it mean humidity is 37.10%RH.

Script Demo:

~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--

function com.main()

~-~-dosomething

openPlc()

end

function openPlc()

if obj then

~-~- If the serial port opened,then read/write data by timing

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local wri = string.pack(">HHHH",0X0103,0X0200,0X0003,0X0473)

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local arr = reading(wri)

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~-~- if arr ~~=nil then

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~-~- if arr[1] ==33 and arr[2] ==v[2][2] and arr[3] ==v[2][3] then

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~-~- local A = arr[4]*256

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~-~- local B = A+arr[5]

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~-~- addr_setword(v[1],B)

~-~- end

~-~- end

else

~-~-judge if there is a serial object, then initialize and open the serial port

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local configs = {

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name = 'COM1', ~-~-Select serial port COM1

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mode = 485, ~-~-Communication mode RS485

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baud_rate = 9600, ~-~-Baud rate 9600

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stop_bit = 1, ~-~-stop bit 1

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data_len = 8, ~-~-data length 8

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check_bit = 'NONE', ~-~-no parity

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}

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obj,err = serial.open(configs) ~-~-Open serial port

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if not obj then

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print("serial open :failed", err) ~-~- Open serial port failed

end

end

end

function reading(wri)

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obj:flush() ~-~- Clear serial port

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obj:write(wri) ~-~- Write serial port

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print(string.byte(wri,1,#wri))

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obj:flush() ~-~- Clear serial port

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local readed =obj:read(9,1000) ~-~- Read 9 bytes, timeout 1 second

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if readed and readed ~~= "" then

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~-~- judge that a non-empty string is read

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print(string.byte(readed,1,#readed))

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a={string.byte(readed, 1, #readed)}

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if nil ~~= a[4] and nil ~~= a[5] and nil ~~= a[6] and nil ~~= a[7] then

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a1=a[4]*256+a[5]

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a2=a[6]*256+a[7]

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addr_setword("@HDW0",a1)

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addr_setword("@HDW1",a2)

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end

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return {string.byte(readed, 1, #readed)}

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elseif readed == nil then

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print("serial read err:", err or "")

return nil

end

return nil

end

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