Unified script to change object property

See attachment

export function Circle_1_BackColor_Trigger(item) {

var value;

A bit 'HMI_Byte_3_Bit_0' is toggled ON and OFF (can see value changing )

It should alter the background colour of the circle but nothing happens

No joy 

I can't believe how difficult it is to get this working. 

Hello smcuser

First of all you need to know what is not working...

Check in the Trigger (Clock symbol) if the needed trigger tag is listed in the dialog (usually it is set to automatic trigger, so all tags that are used in the Script are also trigger tags). In older TIA Versions the auto trigger is not implemented yet, so you have to check it manually!

Do also use a basic way of diagnostic that you can see if the Script runs and if there is an error in it:

https://support.industry.siemens.com/cs/de/en/view/109777593

and if you want to do advanced diagnostic you can also use easily a Script debugger:

https://support.industry.siemens.com/cs/de/en/view/109779192

often the reasons for this kind of errors are very small (typing errors or similar), but you have everything to do a quick diagnose to find out the reason and improve your skills at the same time

Bye Murof

Hi smcuser,

you don't need to use a script to change the background color, but if you want to it is possible, see my example.

export function Circle_1_BackColor_Trigger(item) {

var value;
let tag1 = Tags("HMI_Byte_3_Bit_0");
let tagValue1 = tag1.Read();

if (tagValue1) {
  value = 0xFFFFFF00;
} else {
  value = 0x00C0C0C0;
}
  return value;

}