"/sap/opu/odata/sap/ZGW_RFC_DEST_DETAILS_SRV_01/"
must be specified when you create ODataModel
varr om = new sap.ui.model.odata.ODataModel("/sap/opu/odata/sap/ZGW_RFC_DEST_DETAILS_SRV_01/", ...);
this.setModel(om);//or this.getView().setModel(om) in case of controller
binding is just
this.getView().bindElement("/DETAILSSet(0)");