Index: leahi_dialin/dd/modules/records.py
===================================================================
diff -u -r0593f17d4a3a35989edbc1a576da868b5e971a0b -rf6331a31fdb7658d411a8dfe200664253ccdd3e4
--- leahi_dialin/dd/modules/records.py	(.../records.py)	(revision 0593f17d4a3a35989edbc1a576da868b5e971a0b)
+++ leahi_dialin/dd/modules/records.py	(.../records.py)	(revision f6331a31fdb7658d411a8dfe200664253ccdd3e4)
@@ -106,19 +106,24 @@
         self.usage_info_records = { }                             #: The Usage Information Records data in dictionary format
 
         for sys_record in dd_enum_repository.SystemRecordFields:
-            self.system_records[sys_record.name] = None
+            if 'num_' not in sys_record:
+                self.system_records[sys_record.name] = None
 
         for serv_record in dd_enum_repository.ServiceRecordFields:
-            self.service_records[serv_record.name] = None
+            if 'num_' not in serv_record:
+                self.service_records[serv_record.name] = None
 
         for cal_record in dd_enum_repository.CalibrationRecordFields:
-            self.calibration_records[cal_record.name] = None
+            if 'num_' not in cal_record:
+                self.calibration_records[cal_record.name] = None
 
         for inst_record in dd_enum_repository.InstitutionalRecordFields:
-            self.institutional_records[inst_record.name] = None
+            if 'num_' not in inst_record:
+                self.institutional_records[inst_record.name] = None
 
         for usage_record in dd_enum_repository.UsageInformationRecordFields:
-            self.usage_info_records[usage_record.name] = None
+            if 'num_' not in usage_record:
+                self.usage_info_records[usage_record.name] = None
 
 
 # ================================================= CAN Message Handler Methods =================================================
@@ -566,9 +571,9 @@
         @return: 1 if successful, zero otherwise
         """
         if len(part_number) != 10:
-            raise ValueError("part_number must be 10 characters")
-        if len(serial_number) != 10:
-            raise ValueError("serial must be 20 characters")
+            raise ValueError(f'part_number must be 10 characters, provided is: {len(part_number)}')
+        if len(serial_number) != 20:
+            raise ValueError(f'serial must be 20 characters, provided is: {len(serial_number)}')
         
         payload = integer_to_bytearray(is_ro_featured)
         payload = integer_to_bytearray(is_ro_featured_boost_pump)