FieldChange method is getting executed 3 times in Siebel Open UI

Dear All,

My Requirement is whenever user changes value in a particular field in list applet, i have to execute a business logic and show the show a pop up to user.

I tried FieldChange" and "Cellchange" method in PR layer and noticed that method is executed 3 times for the same field. In the below example, i could see the value printed in console three times.

I expected that it will run only once for a field. Could you please clarify this? Thanks for your help!

AAEAPWInt.prototype.Init = function(){

  SiebelAppFacade.AAEAPWInt.superclass.Init.call(this);

  this.GetPM().AttachPMBinding("FieldChange", this.SetControlValue, {scope: this});