Rendering data signal error conditions

In Power Operation, error conditions in graphics can be represented either by scripting or by the presentation value of an attribute binding.

Rendering error conditions using script

You can use a script to demonstrate the current breaker status.

The following code example explains the getValue() function in script:

function change(evt)
{
    var val = evt.getValue().split(",")[0];
    var dateTime = evt.getValue().split(",")[1];
    var quality = evt.getValue().split(",")[2];
    var comp = evt.getCurrentTarget();

    //Hiding the placeholder
    if(quality == "0" && dateTime == "0"){
        comp.setAttribute("Visibility", "Hidden");
    }
    
    //Setting the value as -inf
    else if(val == "-Infinity"){
        comp.setAttribute("Visibility","Visible");
        comp.getChild("BrkSt").setAttribute("Content","-Inf");
    }

    //Setting the value to x
    else if(quality == "2"){
        comp.setAttribute("Visibility","Visible");
        comp.getChild("BrkSt").setAttribute("Content","x");
    }
    //Setting the value in case of good quality
    else{
        comp.setAttribute("Visibility","Visible");
        if(val == "1"){
            evt.getCurrentTarget().getChild("BrkSt").setAttribute("Content","Open");
        }
        if(val == "0"){
            evt.getCurrentTarget().getChild("BrkSt").setAttribute("Content","Close");
        }
}

The following example demonstrates when Power Operation enters comm loss:

The following example demonstrates comm loss due to a bad quality tag:

The following example demonstrates comm loss due to a bad quality tag with a breaker popup open:

The following example demonstrates comm loss due to a tag of unknown quality:

Rendering error conditions in TGML graphics using presentation value

Presentation values in TGML Graphics pages are displayed during several Power Operation error conditions.

In the bind properties, the Presentation values are Format = Presentation, Attribute = Content:

The following table explains the error rendering with the respective placeholder that appears in the output:

Tags Missing in Profile	Placeholder should disappear
Comm Loss for Tags
NA Value	-INF
Quality is good	Show Value returned by API
PO not running	Default Comm Loss
Unknown