Index: trunk/psModules/src/concepts/pmConceptsCopy.c
===================================================================
--- trunk/psModules/src/concepts/pmConceptsCopy.c	(revision 22701)
+++ trunk/psModules/src/concepts/pmConceptsCopy.c	(revision 22703)
@@ -80,5 +80,7 @@
 
     psMetadata *specs = pmConceptsSpecs(PM_FPA_LEVEL_FPA); // Concept specifications
-    if (!target->hdu) {
+
+    pmHDU *hdu = pmHDUGetFirst(target); // HDU with camera format
+    if (!hdu) {
         psError(PS_ERR_UNKNOWN, true, "Can't find HDU for FPA");
         return false;
@@ -124,6 +126,9 @@
     pmHDU *hdu = pmHDUFromChip(target); // Header data unit
     if (!hdu) {
-        psError(PS_ERR_UNKNOWN, true, "Can't find HDU for chip");
-        return false;
+        hdu = pmHDUGetFirst(target->parent);
+        if (!hdu) {
+            psError(PS_ERR_UNKNOWN, true, "Can't find HDU for chip");
+            return false;
+        }
     }
 
@@ -168,6 +173,9 @@
     pmHDU *hdu = pmHDUFromCell(target); // Header data unit
     if (!hdu) {
-        psError(PS_ERR_UNKNOWN, true, "Can't find HDU for cell");
-        return false;
+        hdu = pmHDUGetFirst(target->parent->parent);
+        if (!hdu) {
+            psError(PS_ERR_UNKNOWN, true, "Can't find HDU for cell");
+            return false;
+        }
     }