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.

67

)))

68

(((

)))

(((

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

75

76

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

77

78

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

79

80

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

81

82

(((

83

Click New Project and select the PLC model.

)))

(((

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

)))

(((

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

)))

(((

)))

(((

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

100

101

(((

102

Follow the steps below to configure Ethernet parameters

)))

(((

PLC IP address：192.168.40.101

)))

(((

default gateway：192.168.40.1

)))

(((

subnet mask：255.255.255.0

)))

(((

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

)))

(((

)))

(((

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

127

128

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

129

130

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

131

132

133

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

134

135

(((

136

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.

)))

(((

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

141

)))

142

143

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

)))

)))

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

)))

(((

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.

)))

(((

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

)))

(((

)))

(((

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

164

165

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.

166

167

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

)))

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.

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

176

177

[[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]]

178

179

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

180

181

[[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]]

182

183

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

184

185

[[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]]

186

187

== **Delta DVP Ethernet** ==

188

189

[[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]]

190

191

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

192

193

[[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]]

194

195

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

196

197

[[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]]

198

199

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

200

201

[[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]]

202

203

== **Omron CP1 Series** ==

204

205

[[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]]

210

211

= **2 User define protocol** =

212

213

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]]

214

215

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

216

217

the commond format is as beliow:

218

219

Send commond:01 03 02 00 00 03 04 73

220

221

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

222

223

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

224

225

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

238

239

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

240

local arr = reading(wri)

241

~-~- if arr ~~=nil then

242

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

243

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

244

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

245

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

~-~- end

~-~- end

else

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

251

local configs = {

252

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

253

mode = 485, ~-~-Communication mode RS485

254

baud_rate = 9600, ~-~-Baud rate 9600

255

stop_bit = 1, ~-~-stop bit 1

256

data_len = 8, ~-~-data length 8

257

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

258

259

}

260

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

261

if not obj then

262

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

end

end

end

function reading(wri)

268

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

269

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

270

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

271

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

272

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

273

if readed and readed ~~= "" then

274

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

275

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

276

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

277

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

278

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

279

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

280

addr_setword("@HDW0",a1)

281

addr_setword("@HDW1",a2)

282

end

283

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

284

elseif readed == nil then

285

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

return nil

end

return nil

end

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

Wiki source code of 1 Communication