Commissioning (hardware)
2.5 User memory concept
D410
36 Commissioning Manual, 08/2008 Edition
2.5.2 Properties of the user memories Non-volatile data
Non-volatile data is used with the objective of retaining user- and system-relevant data when
SIMOTION D410 is in de-energized state. You will find information about the area that can
be used for non-volatile data in the
SIMOTION SCOUT
Configuration Manual.
Non-volatile data available in SIMOTION devices:
Table 2-1 Content of non-volatile data
Non-volatile data Content
Kernel data • Last operating state
• IP parameters (IP address, subnet mask, router address)
• DP parameters (PROFIBUS DP address, baud rate)
• Diagnostics buffer
Retain variables • Variables in the interface or implementation section of a unit declared
with VAR_GLOBAL RETAIN
• Global device variables set with the "RETAIN" attribute
Retain TO Absolute encoder offset
Properties of non-volatile data of SIMOTION D410:
Table 2-2 Properties of non-volatile data
Properties Meaning
Location: Non-volatile data resides in the FRAM of SIMOTION D410.
Backup battery: A backup battery is not required.
Backup time: Unlimited
More information
IP and DP parameters in non-volatile data
The IP and DP parameters are loaded from configuration data on the CompactFlash Card
during startup for use by the SIMOTION device. The SIMOTION D410 can use the
addresses defined in these data to go online. The IP and DP parameters on the
CompactFlash Card are also written to non-volatile memory during startup. The IP and DP
parameters in non-volatile data is retained and used by the SIMOTION device if the system
is restarted with a CompactFlash Card which does not contain any configuration data. The
SIMOTION device can always be made available online if the configuration was downloaded
to the device at least once using SIMOTION SCOUT, or if the SIMOTION device was started
up with Compact Flash Card.