Main [

    If Latch(AbsTime(1, 5, 0), AbsTime(1, 1, 5));
    [

        TagObj3 = Scope(\Code,"Fq");
        ScriptObj\Value = TagObj3\Value; 
           {this works, changing TagObj3 value in VTScada Tag Manager reflects in the Script tags value.}  


         TagObj3\Value = 5434; {  this do **not** work, I cannot see Fq tag changing its value to 5434 }
{ Is it changing its value to 5434 but only for a moment?}
        TagObj1 = Scope(\Code,"Fq");  {just for testing}

    ]
]

    TagObj3 = Scope(\Code,"Fq");
        TagObj3\Value = 121;
        ScriptObj\Value = TagObj3\Value;

```` Main [ If Latch(AbsTime(1, 5, 0), AbsTime(1, 1, 5)); [ TagObj3 = Scope(\Code,"Fq"); ScriptObj\Value = TagObj3\Value; {this works, changing TagObj3 value in VTScada Tag Manager reflects in the Script tags value.} TagObj3\Value = 5434; { this do **not** work, I cannot see Fq tag changing its value to 5434 } { Is it changing its value to 5434 but only for a moment?} TagObj1 = Scope(\Code,"Fq"); {just for testing} ] ] ```` I have searched the docs, there are functions to write to drivers and PLC, but what about writing to calculation tags? Question : Is `\Value` a read-only thing? Or only ScriptObj supports being to be written a value?.. I opened Source debugger and dropped a breakpoint on the _{just for testing}_ line. when execution hangs up on that line, I do see my 5434 value in the tag browser. but when i press continue, the value disappears. Then I tried the following: ```` TagObj3 = Scope(\Code,"Fq"); TagObj3\Value = 121; ScriptObj\Value = TagObj3\Value; ```` (No breakpoints/debugging this time) Now I see 121 value in my script tag. but not in tag 'Fq' _Question :_ Why does 121 exist in the tag momentarily? which topic of knowlege am i missing :)

You'll want to use the setter submodule for this Set --> https://www.vtscada.com/help/Content/Pro_Functions/Set.htm