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Changes for page 05 Lua Script

Last modified by Devin Chen on 2025/03/04 14:07
From version 42.1
edited by Hunter
on 2023/07/31 17:34
Change comment: There is no comment for this version
To version 50.1
edited by Devin Chen
on 2023/08/17 18:37
Change comment: There is no comment for this version

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1 -XWiki.Hunter
1 +XWiki.DevinChen
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38 38  
39 39  The example shows how the to establish the FTP server at WIN10 OS and make the HMI as FTP client.
40 40  
41 -[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/FTP%20Client.zip]]
41 +[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/FTP%20ClientV2.zip]]
42 42  
43 43  ~1. About how to set up the FTP server in Windows PC: **[[Build an FTP Site on IIS>>https://docs.microsoft.com/en-us/iis/publish/using-the-ftp-service/scenario-build-an-ftp-site-on-iis]] **,** [[How to set up and manage an FTP server on Windows 10>>https://www.windowscentral.com/how-set-and-manage-ftp-server-windows-10]]**
44 44  
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529 529  
530 530  [[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/csvRead.zip]]
531 531  
532 -The core code is from file readcsv.lua, and file path is set as Sheet_2023_06_13_15_29_45.csv at the root path for USB.
532 +The core code is from file readcsv.lua:
533 533  
534 -1) The reading content is a two-dimensional table, can use the table index to lacate the specify data cell;
534 +1) The file path is set as Sheet_2023_06_13_15_29_45.csv at the root path for USB;
535 535  
536 536  2) Remember to change csv separator in the second parameter from function csv_csvToTable according to user's need, this demo is using **semicolon** as separator;
537 537  
538 538  (% style="text-align:center" %)
539 539  [[image:CSVreadwithsemicolon.png]]
540 +
541 +3) The reading content is a two-dimensional table, can use the table index to locate the specify data cell;
542 +
543 +For example, want to read the 2nd row C column from the table, the table index will be like table[2][3].
544 +
545 +(% style="text-align:center" %)
546 +[[image:celllocation.png]]
547 +
548 += 18 How to convert a number to a string =
549 +
550 +The example shows how to convert a number to a string using the "tostring()" function.
551 +
552 +[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/Number%20to%20string.zip]]
553 +
554 +Note:This demo converts a 64-bit floating to a string,you can change the data format of "@W_HDW0" depand on requirements
555 +
556 +The core code is from file convert.lua:
557 +
558 +(% style="text-align:center" %)
559 +[[image:convert.lua.png]]
560 +
561 +The HMI offline simulator result:
562 +
563 +(% style="text-align:center" %)
564 +[[image:Converttestdisplay.png]]
Converttestdisplay.png
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