diff --git a/PROMS/ReferencedObjects/LibSource/RODBInterface/VlnXml.cs b/PROMS/ReferencedObjects/LibSource/RODBInterface/VlnXml.cs
index dfdf6210..98647f8f 100644
--- a/PROMS/ReferencedObjects/LibSource/RODBInterface/VlnXml.cs
+++ b/PROMS/ReferencedObjects/LibSource/RODBInterface/VlnXml.cs
@@ -738,17 +738,21 @@ namespace RODBInterface
 				//applicValues = "";
 				applicValues = string.Format("<APL DefaultVal={0}", parentValue);
 				int pcChildIdx = 0;
+				//C2022-001 only save the child ro value in the RO.FST if it is different than the parent (default) value
 				foreach (string c in pcChildern)
 				{
 					//string csufx = CvtUserFldToFld(c);
 					pcChildIdx++;
 					string csufx = string.Format("_PCCHILD{0}", pcChildIdx);
-					applicValues += ",";
+					//applicValues += ",";
 					XmlNode cn = elmnode.SelectSingleNode(parentName + csufx);
 					if (cn == null)
-						applicValues += string.Format("UnitIdx={0} Value={1}", pcChildIdx, parentValue); // use parent value as default
+						applicValues += string.Format(",UnitIdx={0} Value={1}", pcChildIdx, parentValue); // use parent value as default
 					else
-						applicValues += string.Format("UnitIdx={0} Value={1}", pcChildIdx, cn.InnerText);
+					{
+						if (parentValue != cn.InnerText)
+							applicValues += string.Format(",UnitIdx={0} Value={1}", pcChildIdx, cn.InnerText);
+					}
 				}
 				applicValues += " /APL>";
 			}