# Change Page Automatically Every 30 Seconds **URL:** \ **Category:** Ignition\ **Tags:** vision\ **Created:** [January 3, 2023, 8:42am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150 "2023-01-03T08:42:59Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![batuhan.parlakay](https://avatars.discourse-cdn.com/v4/letter/b/22d042/32.png) [@batuhan.parlakay](https://forum.inductiveautomation.com/u/batuhan.parlakay)\ **Post date:** [January 3, 2023, 8:42am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/1 "2023-01-03T08:42:59Z")
Hello I want to switch a page every 30 seconds while the project is running in runtime. So let it automatically switch between pages. Is something like this possible ? Thank you. ---
**Author:** ![pascal.fragnoud](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pascal.fragnoud/32/24728_2.png) [@pascal.fragnoud](https://forum.inductiveautomation.com/u/pascal.fragnoud)\ **Post date:** [January 3, 2023, 9:05am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/2 "2023-01-03T09:05:49Z")
Vision or Perspective ? Should the page switch be synchronized between all open clients (ie: show everyone the same page at the same time) ? ---
**Author:** ![batuhan.parlakay](https://avatars.discourse-cdn.com/v4/letter/b/22d042/32.png) [@batuhan.parlakay](https://forum.inductiveautomation.com/u/batuhan.parlakay)\ **Post date:** [January 3, 2023, 9:23am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/3 "2023-01-03T09:23:06Z")
Yes, All open client show everyone the same page at the same time. I want to do it in vision ---
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [January 3, 2023, 11:18am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/4 "2023-01-03T11:18:52Z")
- make an expression tag that toggles every 30 seconds. Using the gateway time ensures the same toggle across all connections. Specifying `[System]Gateway/CurrentDateTime` lets it work regardless if you use a client tag or gateway tag. `floor(getSecond({[System]Gateway/CurrentDateTime})/30) ` - Create a tag that stores the pointer value of the screen you wish to display. - Use a[client tag change event script](https://docs.inductiveautomation.com/display/DOC81/Client+Event+Scripts#ClientEventScripts-TagChangeScripts), triggering on the expression tag you just made: ```python windowPaths = [ 'path/to/screen 1', 'path/to/screen 2', 'path/to/screen 3', 'path/to/screen 4', 'path/to/screen 5' ] pointerTag = ['[default]path/to/pointer/tag'] pointer = system.tag.readblocking(pointerTag)[0].value + 1 if pointer >= len(windowPaths): pointer = 0 system.nav.swapTo(windowPaths[pointer]) system.tag.writeBlocking(pointerTag, [pointer]) ``` ---
**Author:** ![batuhan.parlakay](https://avatars.discourse-cdn.com/v4/letter/b/22d042/32.png) [@batuhan.parlakay](https://forum.inductiveautomation.com/u/batuhan.parlakay)\ **Post date:** [January 4, 2023, 7:30am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/5 "2023-01-04T07:30:29Z")
Everything is very understandable, thank you . I just didn't quite understand how to open the page. "system.nav.swapTo(windowPaths(pointer))" ---
**Author:** ![justinedwards.jle](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/justinedwards.jle/32/37854_2.png) [@justinedwards.jle](https://forum.inductiveautomation.com/u/justinedwards.jle)\ **Post date:** [January 4, 2023, 8:22am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/6 "2023-01-04T08:22:50Z")
> [@batuhan.parlakay](#): > > I just didn't quite understand how to open the page. > > "system.nav.swapTo(windowPaths(pointer))" It looks like a typo. It should probably be `system.nav.swapTo(windowPaths[pointer])` windowPaths is a list of paths, and pointer is the integer that selects a specific path from the list. ---
**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Post date:** [January 4, 2023, 11:32am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/7 "2023-01-04T11:32:48Z")
> [@JordanCClark](#): > > ```python > pointer = system.tag.readblocking(pointerTag)[0].value + 1 > > if pointer >= len(windowPaths): > pointer = 0 > > ``` Why not just ```python pointer = system.tag.readblocking(pointerTag)[0].value + 1 pointer = pointer % len(windowPaths) #edited from len - 1 ``` 😜 ---
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [January 4, 2023, 11:35am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/8 "2023-01-04T11:35:55Z")
Because I started with BASIC back in the 1980s. 😉 ---
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [January 4, 2023, 11:37am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/9 "2023-01-04T11:37:21Z")
> [@justinedwards.jle](#): > > It looks like a typo. Not only does it look like a typo, it, in fact, is one. Thanks for the catch. Fixed. ---
**Author:** ![zxcslo](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/zxcslo/32/61610_2.png) [@zxcslo](https://forum.inductiveautomation.com/u/zxcslo)\ **Post date:** [January 4, 2023, 1:19pm UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/10 "2023-01-04T13:19:54Z")
1982, with ZX Spectrum and Comodore64... ---
**Author:** ![justinedwards.jle](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/justinedwards.jle/32/37854_2.png) [@justinedwards.jle](https://forum.inductiveautomation.com/u/justinedwards.jle)\ **Post date:** [January 4, 2023, 1:24pm UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/11 "2023-01-04T13:24:58Z")
> [@zxcslo](#): > > Comodore64 A Comodore 128 and a stack of Commodore magazines for me. I believe it was followed by some flavor of 286 [gorillas.bas] ---
**Author:** ![pascal.fragnoud](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pascal.fragnoud/32/24728_2.png) [@pascal.fragnoud](https://forum.inductiveautomation.com/u/pascal.fragnoud)\ **Post date:** [January 4, 2023, 2:26pm UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/12 "2023-01-04T14:26:43Z")
Is this a dinosaurs gathering of some kind ? You (old) people were coding before I was even born ! ---
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [January 4, 2023, 2:28pm UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/13 "2023-01-04T14:28:17Z")
> [@pascal.fragnoud](#): > > You (old) people I prefer to think of us as 'seasoned citizens'. ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [January 4, 2023, 2:39pm UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/14 "2023-01-04T14:39:49Z")
> [@pascal.fragnoud](#): > > You (old) people were coding before I was even born ! Heh. I suspect my son (also a EE, but not interested in coding) is older than many of you (32) . As for me: 1978, HeathKit H-8, 8080 machine language via its octal keypad and readout. Moved up to integer BASIC (no strings) on a dumb terminal soon after. ---
**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Post date:** [January 4, 2023, 7:32pm UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/15 "2023-01-04T19:32:00Z")
> [@pturmel](#): > > is older than many of you (32) Pft, I'm way older than that! I'm 35 or 36; I'm so old that I can't remember 😄 ---
**Author:** ![Adriaan.leRoux](https://avatars.discourse-cdn.com/v4/letter/a/bbce88/32.png) [@Adriaan.leRoux](https://forum.inductiveautomation.com/u/Adriaan.leRoux)\ **Post date:** [January 5, 2023, 6:57am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/16 "2023-01-05T06:57:37Z")
Nibbles ---
**Author:** ![pascal.fragnoud](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pascal.fragnoud/32/24728_2.png) [@pascal.fragnoud](https://forum.inductiveautomation.com/u/pascal.fragnoud)\ **Post date:** [January 5, 2023, 8:49am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/17 "2023-01-05T08:49:41Z")
86 ? Also, always wanted to ask... any relation to [this other australian Minchin dude](https://en.wikipedia.org/wiki/Tim_Minchin) ? ---
**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Post date:** [January 5, 2023, 9:50am UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/18 "2023-01-05T09:50:34Z")
I think I'm related, some distant cousin or something. I'm sure my dad or uncle know. We have a book of Minchins somewhere haha ---
**Author:** ![michael.ruel](https://avatars.discourse-cdn.com/v4/letter/m/ecd19e/32.png) [@michael.ruel](https://forum.inductiveautomation.com/u/michael.ruel)\ **Post date:** [January 6, 2023, 3:02pm UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/19 "2023-01-06T15:02:55Z")
I think the -1 in the mod is incorrect and there shouldn't be any modifier. Once your at index 3 in the list you'll go to index 0 instead of the last window in the list. `pointer = pointer % len(windows)` works. Just wanted to clarify in case someone sees it and tries to use it. ---
**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Post date:** [January 6, 2023, 4:20pm UTC](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150/20 "2023-01-06T16:20:56Z")
Oops, yes, you're right. I had that originally but "incorrected" it later 😕 I'll fix my reply, cheers [Next page](https://forum.inductiveautomation.com/t/change-page-automatically-every-30-seconds/68150.md?page=2)