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Changes for page 05 Lua Script

Last modified by Devin Chen on 2025/03/04 14:07
From version 46.1
edited by Hunter
on 2023/08/12 19:25
Change comment: There is no comment for this version
To version 56.1
edited by Hunter
on 2024/07/18 18:39
Change comment: There is no comment for this version

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545 545  (% style="text-align:center" %)
546 546  [[image:celllocation.png]]
547 547  
548 -
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]]
565 +
566 += 19 HUAWEI CLOUD & OpenCloud =
567 +
568 +About the details, please check the powerpoint or video of Lua MQTT & OpenCloud [[Jump To>>doc:PIStudio.Download.1 Manual.WebHome]]
569 +
570 +[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/HuaweiMQ%281%29.zip]]
571 +
572 += 20 UDP Multicast =
573 +
574 +The example shows how to use UDP multicast feature to send and receive data.
575 +
576 +[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/UDP%20Multicast.zip]]
577 +
578 +About the details, please check the [[UDP module>>https://docs.we-con.com.cn/bin/view/PIStudio/09%20Lua%20Editor/Lua%20Script/#HUDPmodule-1]]
579 +
580 += 21 ATC module **send SMS** =
581 +
582 +The example shows how to use HMI to customize communication with the ATC SMS module via Lua script to send SMS.
583 +
584 +[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/SMS.zip]]
585 +
586 += 22 TCP Client =
587 +
588 +The example shows how to use the Lua Socket TCP module to connect with a TCP server.
589 +
590 +[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/TCP_Client.zip]]
591 +
592 +~1. Set the initial values of Server IP and port number.
593 +
594 +(% style="text-align:center" %)
595 +[[image:vcbt6CE6EL.png]]
596 +
597 +2. Set the actual receive length of TCP message according to the actual needs.
598 +
599 +(% style="text-align:center" %)
600 +[[image:tPN1mbz7ny.png]]
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