Siemens D410 appendix Startup and non-volatile data, Diagnostics of non-volatile data

Commissioning (hardware) 2.5 User memory concept

Startup and non-volatile data

The table below describes the startup situations which may develop in terms of the non- volatile data and how to handle such situations.

Table 2-3		Startup situations with non-volatile data
Situa	Initial condition		Result
tion
1	Valid contents of non-volatile data.		Startup of SIMOTION D410 with the non-volatile data.
			The PROFIBUS address in non-volatile data is
			therefore valid, for example.
2	Invalid contents in non-volatile data, and neither a backup		SIMOTION D410 copies the factory defaults to its non-
	file (PMEMORY.XML), nor a backup copy		volatile data and restarts using this data. The default
	(PMEMORY.BAK) exists.		PROFIBUS address is valid in this case, for example.
3	Invalid contents in non-volatile data. A backup file		SIMOTION D410 copies the contents of the backup file
	(PMEMORY.XML) with valid contents is available.		to its non-volatile data and starts using this data.
4	Invalid contents in non-volatile data and in the backup file,		SIMOTION D410 copies the factory defaults to its non-
	and a backup copy (PMEMORY.BAK) is not available.		volatile data and restarts using this data. The default
			PROFIBUS address is valid in this case, for example.
5	Invalid contents in non-volatile data and in the backup file,		SIMOTION D410 copies the contents of the backup file
	and a backup copy (PMEMORY.BAK) with valid contents		to its non-volatile data and starts using this data.
	is available.

Diagnostics of non-volatile data

Users can determine the status of non-volatile data by reading the diagnostics buffer and the system variable.

The following message events are entered once in the diagnostics buffer when they occur:

Table 2-4	Messages of the diagnostics buffer
Entry		Meaning	To correct or avoid errors
Non-volatile data loaded from file		Non-volatile data successfully restored	-
(Persistent Data File Loading done)		from the backup file to the
		CompactFlash Card.
Non-volatile data loaded from the backup file		Non-volatile data successfully restored	-
(Persistent Data Backup File Loading done)		from the backup copy to the
		CompactFlash Card.
Error while loading non-volatile data from a		Backup file or backup copy could not be	Use the
file		loaded.	"_savePersistentMemoryData"
(Persistent Data File Loading Failure)		Possible causes:	system function to generate a
		• Backup file or backup copy not	backup file with valid contents.
		available
		• Invalid data in backup file

40	D410
	Commissioning Manual, 08/2008 Edition