diff --git a/code/classes/SCDclass_mdspar.m b/code/classes/SCDclass_mdspar.m
index abf225e6f133a8b933d4c1e6258ebee6dbda3b05..7cfff7960e982b7b95ba4d40f4a0219c0500a5af 100644
--- a/code/classes/SCDclass_mdspar.m
+++ b/code/classes/SCDclass_mdspar.m
@@ -112,34 +112,19 @@ classdef SCDclass_mdspar < matlab.mixin.Heterogeneous
            % parameter, otherwise it is taken from the global shot number
            % given to the actualize command
            if obj.overrideshot == 1
-              localshot = obj.overrideshotn;
+             localshot = obj.overrideshotn;
            else
-              localshot = shot;
+             localshot = shot;
            end
-           s=mdsopen(obj.mdstree, localshot);
-           openok=true;
-           if isempty(s)
-               openok=false;
-           end
-           if openok 
-               if ~isnumeric(s) || s~=localshot
-                    openok=false;
-               end
-           end
-           if openok
-               if s~=localshot
-                   openok=false;
-               end
-           end
-           if ~openok    
-               warning('SCDclass_mdspar:MDSerror','MDS+ tree open error for parameter %s. Actualization skipped.',obj.modelparam);
+           mdsconnect(obj.mdsserver);
+           [~,s] = mdsopen(obj.mdstree, localshot);
+           if ~rem(s,2)
+             warning('SCDclass_mdspar:MDSerror','MDS+ tree open error for parameter %s. Actualization skipped.',obj.modelparam);
              obj.actualizable=false;
            end
-           %str=sprintf('SCDclass_mdsparam (%s), failed opening MDS+ tree', obj.modelparam);
-           %assert(s==localshot, str);
         end
         
-        function obj=setactualizecmds(obj, shot)
+        function obj=setactualizecmds(obj)
            pointspos=strfind(obj.modelparam,'.');
            baseparam=obj.modelparam(1:pointspos(1)-1);
            structparam=obj.modelparam(pointspos(1):end); 
@@ -157,7 +142,7 @@ classdef SCDclass_mdspar < matlab.mixin.Heterogeneous
                % Checking if data can be retrieved, updating get command               
                [obj, obj.value]=obj.getdata(shot);
                if ~obj.actualizable, return; end
-               obj=obj.setactualizecmds(shot);
+               obj=obj.setactualizecmds;
            end
         end