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Changes for page 05 Lua Script

Last modified by Devin Chen on 2025/03/04 14:07
From version 58.2
edited by Joe
on 2024/09/06 11:14
Change comment: There is no comment for this version
To version 47.1
edited by Devin Chen
on 2023/08/17 15:33
Change comment: There is no comment for this version

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67 67  (% style="text-align:center" %)
68 68  [[image:LuaFTPDemoInitial.png]]
69 69  
70 -(% class="box infomessage" %)
71 -(((
72 72  ✎Note: If want to confirm whether it is downloaded successfully, please add a File list object to check in HMI project. If saved path is root path (same to the all three drive), please set the folder as "~/~/".
73 -)))
74 74  
75 75  (% style="text-align:center" %)
76 76  [[image:LuaFTPDemoFilelist.png]]
77 77  
78 -**Common error：**
79 -
80 - In the demo project, if there are some errors in HMI for testing, please check the following steps.
81 -
82 -Error 1: 550 Access is denied
83 -
84 -Open Windows Settings → Update & Security→ Windows Security→ Firewall & network protection→ Advanced setting→ Inbound Rules→ New Rules→ Next → choose "This program path"→ input ‘’C:\Windows\System32\svchost.exe‘’→ Click “NEXT” continuously
85 -
86 -(% style="text-align:center" %)
87 -[[image:qCzqnKTUhp.png]]
88 -
89 -(% style="text-align:center" %)
90 -[[image:vfrt3NElMX.png]]
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92 -(% style="text-align:center" %)
93 -[[image:dAuz25bdvM.png]]
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95 -(% style="text-align:center" %)
96 -[[image:rxQIJkX8ll.png]]
97 -
98 -(% style="text-align:center" %)
99 -[[image:vmG8WGu5P2.png]]
100 -
101 -
102 -Error 2: No route to host
103 -
104 -The previous steps are the same as Error 1 → Port → specific local ports→ input port number “21”→ Click “NEXT” continuously
105 -
106 -(% style="text-align:center" %)
107 -[[image:fdsxie8WHc.png]]
108 -
109 -(% style="text-align:center" %)
110 -[[image:4ALQq7niTV.png]]
111 -
112 -
113 -
114 114  = **8 Telegram Notification** =
115 115  
116 116  The example shows how to use Bot API to push the notification to channel or group of Telegram. Please change the Token and Chat id to users' own one.
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584 584  (% style="text-align:center" %)
585 585  [[image:celllocation.png]]
586 586  
587 -= 18 How to convert a number to a string =
548 += 18 Convert a number to a string =
588 588  
589 589  The example shows how to convert a number to a string using the "tostring()" function.
590 590  
591 -[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/Number%20to%20string.zip]]
592 592  
593 -Note:This demo converts a 64-bit floating to a string,you can change the data format of "@W_HDW0" depand on requirements
594 -
595 595  The core code is from file convert.lua:
596 596  
597 597  (% style="text-align:center" %)
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602 602  (% style="text-align:center" %)
603 603  [[image:Converttestdisplay.png]]
604 604  
605 -= 19 HUAWEI CLOUD & OpenCloud =
606 -
607 -About the details, please check the powerpoint or video of Lua MQTT & OpenCloud [[Jump To>>doc:PIStudio.Download.1 Manual.WebHome]]
608 -
609 -[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/HuaweiMQ%281%29.zip]]
610 -
611 -= 20 UDP Multicast =
612 -
613 -The example shows how to use UDP multicast feature to send and receive data.
614 -
615 -[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/UDP%20Multicast.zip]]
616 -
617 -About the details, please check the [[UDP module>>https://docs.we-con.com.cn/bin/view/PIStudio/09%20Lua%20Editor/Lua%20Script/#HUDPmodule-1]]
618 -
619 -= 21 ATC module **send SMS** =
620 -
621 -The example shows how to use HMI to customize communication with the ATC SMS module via Lua script to send SMS.
622 -
623 -[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/SMS.zip]]
624 -
625 -= 22 TCP Client =
626 -
627 -The example shows how to use the Lua Socket TCP module to connect with a TCP server.
628 -
629 -[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/TCP%20ClientV1.1.zip]]
630 -
631 -~1. Set the initial values of Server IP and port number.
632 -
633 -(% style="text-align:center" %)
634 -[[image:vcbt6CE6EL.png]]
635 -
636 -2. Set the actual receive length of TCP message according to the actual needs.
637 -
638 -(% style="text-align:center" %)
639 -[[image:tPN1mbz7ny.png]]
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