Hello all together,

I am trying to change the backgrouncolor of a button in a 0.5Hz intervall if the shutdown is active. I tryed it with the example 5.9 from the script "Tipps and Tricks" from Siemens. Changing the color is no problem but the timer does not work.This is my code:

export function ShutdownButton_BackColor_Trigger(item) {
var value;
let sdAct = Tags("SD_sdAct").Read();
var swap;



if(sdAct==true){
timerID = HMIRuntime.Timers.SetInterval(function(){swap= !swap},500)
if(swap==true){
Screen.Items('ShutdownButton').BackColor = HMIRuntime.Math.RGB (255,255,0);}
if(swap==false){
Screen.Items('ShutdownButton').BackColor = HMIRuntime.Math.RGB (255,0,0);}
}

if(sdAct==false){
Screen.Items('ShutdownButton').BackColor = HMIRuntime.Math.RGB (255,255,0);
HMIRuntime.Timers.ClearInterval(timerID);
}

return value;
}

 also i defined this in the global deinition area:

let timerID;

 I can´t imagine why it does not work. Let me know if you need more information, Thank you!

Hi Phillip,

i think this has something to do with the Timefunctions, that they take multiple "cylces". The programm advances, while the time has not expired. Since there already is a return, it won't come back and return it again.

You could change it to asynchronous and put await infront of the timer, then it has to wait till the time expires to advance to the next line.

something like:

timerID = await HMIRuntime.Timers...

i'm not really sure how to handle the callback function then.

I hope this already helps.

ZickZackTIA

EDIT: Alternative: Just change the trigger from Tag to cyclic with 0.5Hz ;)

Hi PhillipDP,

maybe this topic is useful for you:

https://support.industry.siemens.com/tf//ww/en/posts/change-button-color/245767/?page=0&pageSize=10

BR;

Noodles

Hello ZigZack,

I tryed to call the script ascnchronus but that did not solved the problem. Also the add on with await didnt change it. The button stays at "yellow". If i delete the timer call and just do the color script ( red if sdAct is true and yellow if it is false) works fine. so the problem just could be the timer or the "swap" definition.

I also tryed your tip with the cyclic read out of defenition "sdAct" but I am not sure if i got this correct. Do you mean that i swap the aquisition cycle in the tag table? ( this does not work. It gets the value cyclic and keeps it state until the next cycle) or do you mean that I move the whole script without the timer funtion to those shedule tasks so it gets called in a 0.5Hz intervall?

This function could be so simple but even without an script you can change the backcolor with a tag / let it flash. but if I chose the blink option i cant trigger it with a tag. it always blinks.

Thank you for your help

Hi Phillip,

i think this has something to do with the Timefunctions, that they take multiple "cylces". The programm advances, while the time has not expired. Since there already is a return, it won't come back and return it again.

You could change it to asynchronous and put await infront of the timer, then it has to wait till the time expires to advance to the next line.

something like:

timerID = await HMIRuntime.Timers...

i'm not really sure how to handle the callback function then.

I hope this already helps.

ZickZackTIA

EDIT: Alternative: Just change the trigger from Tag to cyclic with 0.5Hz ;)

 Hello Noodles,

I already checked this post. It is just about to find those object and change it with the value of an tag. If i delete my timer all works well but it does not blink when the "sdAct" is true. It just stay red.

Hi PhillipDP,

maybe this topic is useful for you:

https://support.industry.siemens.com/tf//ww/en/posts/change-button-color/245767/?page=0&pageSize=10

BR;

Noodles

I have more information now. The script might work correctly but the button color does not update continus. If I trigger the button it gets the color depending on ity cyclic state. but if i dont touch it anymore it stays at its actual color.

I solved it but its not the finest way. I call an script every 500ms and invert an tag every time. I use this tag for color change now but not in a script. Now it updates fine.

Does anyone have an idea to solve this problem in a script inside the button?

Hi Phillip,

I guess it doesn't work because of the swat variable. This is only valid local in that scipt but not for the recall function of the timers.

try out this one:

timerId = HMIRuntime.Timers.SetInterval(

function()  {

item.BackColor = (item.BackColor == COLORS.alarm) ? COLORS.warning2 : COLORS.alarm;

},

550);

The Colors are defined in Global Definition but you also can put the Math function in place.

but it is important to compare to the same value. In my case the "COLORS.alarm".

If you have more items to Blink you can store the timer ID into alternate Color or as tooltip text. otherwise you can use only one flash function per screen.

To stop the flashing you have to clear the timer with the stored timer ID Number:

HMIRuntime.Timers.ClearInterval(timerId);

Hey,

thanks for the reply. i tryed your code but it does not work either. maybe i did something wrong?

In the global definition I defined the timer and both colors. In the local script I used your code as an synchronus call.

Hi Phillip,

I guess it doesn't work because of the swat variable. This is only valid local in that scipt but not for the recall function of the timers.

try out this one:

timerId = HMIRuntime.Timers.SetInterval(

function()  {

item.BackColor = (item.BackColor == COLORS.alarm) ? COLORS.warning2 : COLORS.alarm;

},

550);

The Colors are defined in Global Definition but you also can put the Math function in place.

but it is important to compare to the same value. In my case the "COLORS.alarm".

If you have more items to Blink you can store the timer ID into alternate Color or as tooltip text. otherwise you can use only one flash function per screen.

To stop the flashing you have to clear the timer with the stored timer ID Number:

HMIRuntime.Timers.ClearInterval(timerId);