Changes for page 05 Lua Script
Last modified by Devin Chen on 2025/03/04 14:07
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... ... @@ -90,7 +90,7 @@ 90 90 91 91 This example shows how to parse value from subscribing MQTT topic. Get the value and calculate the average value for group F1, F2, F3 and F4. The testing topic name is "testtopic/test/no1/123456". 92 92 93 - [[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/MQTT%20JSON%20parse.zip]]93 +Download link 94 94 95 95 And the subscribed content is like following: 96 96 ... ... @@ -227,61 +227,4 @@ 227 227 (% style="text-align:center" %) 228 228 [[image:MQTTJSONparsefunction.png]] 229 229 230 -= **11 High-Low Byte Switch** = 231 - 232 -The example shows how to convert high bytes and low bytes for one 16bit address. Main function is like following: 233 - 234 -{{code language="lua"}} 235 -local lowByte = val & 0x00ff 236 -local shiftHigh = lowByte << 8 237 -local highByte = val & 0xff00 238 -local shiftLow = highByte >> 8 239 -local newVal = shiftHigh|shiftLow 240 -{{/code}} 241 - 242 -[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/byteswitch.zip]] 243 - 244 -= **12 Week time setting** = 245 - 246 -The example shows how to use day time to control functions: 247 - 248 -[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/week%20time.zip]] 249 - 250 -= **13 MQTT Multi-link** = 251 - 252 -The example shows use mqtt realize multi-machine function： 253 - 254 -[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/MQTT%20Multi-link.zip]] 255 - 256 -= **14 CSV File Generation** = 257 - 258 -The example shows convert the custom lua table data into csv string, then output as a file: 259 - 260 -[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/csvGenerate.zip]] 261 - 262 -The following steps take HMI simulator as example: 263 - 264 -~1. Click button "Create Table" to draw lua table in screen. 265 - 266 -(% style="text-align:center" %) 267 -[[image:csvGenerateSteps.png]] 268 - 269 -2. Click button "Save as csv" to save the file into HMI storage path. On the HMI simulator, user can enter the simulation path of U disk to check the file whether create successfully. 270 - 271 -(% style="text-align:center" %) 272 -[[image:csvGenerateSimulationPath.png]] 273 - 274 -3. Click button "upload" to upload csv file into server side. In this case, we can check the upload path for PC. 275 - 276 -(% style="text-align:center" %) 277 -[[image:csvGenerateServerPath.png]] 278 - 279 -The csv file generation is mainly using the following function to implement, the customized data is argument tab, and csv file storage path in HMI is "udisk:weather1.csv": 280 - 281 -(% style="text-align:center" %) 282 -[[image:csvGenerateLuaCode.png]] 283 - 284 -The table drawing is mainly using the following function to implement: 285 - 286 -(% style="text-align:center" %) 287 -[[image:csvLuaTableDrawing.png]] 230 +
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