Index: trunk/psModules/src/camera/pmFPAMosaic.c
===================================================================
--- trunk/psModules/src/camera/pmFPAMosaic.c	(revision 25383)
+++ trunk/psModules/src/camera/pmFPAMosaic.c	(revision 26893)
@@ -626,16 +626,20 @@
     bool good = true;                   // Is everything good?
 
+    const char *cellName = psMetadataLookupStr(NULL, cell->concepts, "CELL.NAME"); // Name of cell
+    const char *chipName = psMetadataLookupStr(NULL, cell->parent->concepts, "CHIP.NAME"); // Name of chip
+
     // Offset of the cell on the chip
     int x0Cell = psMetadataLookupS32(&mdok, cell->concepts, "CELL.X0");
     if (!mdok) {
-        psError(PS_ERR_UNKNOWN, true, "CELL.X0 for cell is not set.\n");
+        psError(PS_ERR_UNKNOWN, true, "CELL.X0 for cell %s,%s is not set.\n", chipName, cellName);
         good = false;
     }
     int y0Cell = psMetadataLookupS32(&mdok, cell->concepts, "CELL.Y0");
     if (!mdok) {
-        psError(PS_ERR_UNKNOWN, true, "CELL.Y0 for cell is not set.\n");
+        psError(PS_ERR_UNKNOWN, true, "CELL.Y0 for cell %s,%s is not set.\n", chipName, cellName);
         good = false;
     }
-    psTrace("psModules.camera", 5, "Cell %ld: x0=%d y0=%d\n", index, x0Cell, y0Cell);
+    psTrace("psModules.camera", 5, "Cell %s,%s (%ld): x0=%d y0=%d\n",
+            chipName, cellName, index, x0Cell, y0Cell);
 
     // Offset of the chip on the FPA
@@ -649,10 +653,10 @@
         x0Chip = psMetadataLookupS32(&mdok, chip->concepts, "CHIP.X0");
         if (!mdok) {
-            psError(PS_ERR_UNKNOWN, true, "CHIP.X0 for chip is not set.\n");
+            psError(PS_ERR_UNKNOWN, true, "CHIP.X0 for chip %s is not set.\n", chipName);
             good = false;
         }
         y0Chip = psMetadataLookupS32(&mdok, chip->concepts, "CHIP.Y0");
         if (!mdok) {
-            psError(PS_ERR_UNKNOWN, true, "CHIP.Y0 for chip is not set.\n");
+            psError(PS_ERR_UNKNOWN, true, "CHIP.Y0 for chip %s is not set.\n", chipName);
             good = false;
         }
@@ -662,5 +666,5 @@
     xBin->data.S32[index] = psMetadataLookupS32(&mdok, cell->concepts, "CELL.XBIN");
     if (!mdok || xBin->data.S32[index] == 0) {
-        psError(PS_ERR_UNKNOWN, true, "CELL.XBIN for cell is not set.\n");
+        psError(PS_ERR_UNKNOWN, true, "CELL.XBIN for cell %s,%s is not set.\n", chipName, cellName);
         return false;
     } else if (xBin->data.S32[index] < *xBinMin) {
@@ -669,5 +673,5 @@
     yBin->data.S32[index] = psMetadataLookupS32(&mdok, cell->concepts, "CELL.YBIN");
     if (!mdok || yBin->data.S32[index] == 0) {
-        psError(PS_ERR_UNKNOWN, true, "CELL.YBIN for cell is not set.\n");
+        psError(PS_ERR_UNKNOWN, true, "CELL.YBIN for cell %s,%s is not set.\n", chipName, cellName);
         return false;
     } else if (yBin->data.S32[index] < *yBinMin) {
@@ -678,10 +682,10 @@
     int xParityCell = psMetadataLookupS32(&mdok, cell->concepts, "CELL.XPARITY");
     if (!mdok || (xParityCell != 1 && xParityCell != -1)) {
-        psError(PS_ERR_UNKNOWN, true, "CELL.XPARITY for cell is not set.\n");
+        psError(PS_ERR_UNKNOWN, true, "CELL.XPARITY for cell %s,%s is not set.\n", chipName, cellName);
         return false;
     }
     int yParityCell = psMetadataLookupS32(&mdok, cell->concepts, "CELL.YPARITY");
     if (!mdok || (yParityCell != 1 && yParityCell != -1)) {
-        psError(PS_ERR_UNKNOWN, true, "CELL.YPARITY for cell is not set.\n");
+        psError(PS_ERR_UNKNOWN, true, "CELL.YPARITY for cell %s,%s is not set.\n", chipName, cellName);
         return false;
     }
@@ -693,10 +697,10 @@
         xParityChip = psMetadataLookupS32(&mdok, chip->concepts, "CHIP.XPARITY");
         if (!mdok || (xParityChip != 1 && xParityChip != -1)) {
-            psError(PS_ERR_UNKNOWN, true, "CHIP.XPARITY for chip is not set.\n");
+            psError(PS_ERR_UNKNOWN, true, "CHIP.XPARITY for chip %s is not set.\n", chipName);
             return false;
         }
         yParityChip = psMetadataLookupS32(&mdok, chip->concepts, "CHIP.YPARITY");
         if (!mdok || (yParityChip != 1 && yParityChip != -1)) {
-            psError(PS_ERR_UNKNOWN, true, "CHIP.YPARITY for chip is not set.\n");
+            psError(PS_ERR_UNKNOWN, true, "CHIP.YPARITY for chip %s is not set.\n", chipName);
             return false;
         }