Properties Of The User Memories - Siemens SIMOTION D410 Series Commissioning Manual

Commissioning (hardware)
2.5 User memory concept
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
Non-volatile data available in SIMOTION devices:
Table 2- 1
Non-volatile data
Kernel data
Retain variables
Retain TO
DCC blocks
Note
DCC SIMOTION blocks with retain behavior act like retain variables in terms of copying RAM
to ROM, performing a memory reset, downloading, backing up non-volatile data
(_savePersistentMemoryData), and backing up data.
With DCC SINAMICS blocks, data are only backed up using FRAM, i.e. not
_savePersistentMemoryData.
For additional details, please refer to the
The SIMOTION D410 backed-up data have the following features:
Table 2- 2
Properties
Location
Backup battery
Backup time
If the real-time clock backup time is exceeded, the time is reset.
32
Content of non-volatile data
Content
Last operating state
•
IP parameters (IP address, subnet mask, router address)
•
DP parameters (PROFIBUS DP address, baud rate)
•
Diagnostics buffer
•
Variables in the interface or implementation section of a unit declared
•
with VAR_GLOBAL RETAIN
Global device variables set with the "RETAIN" attribute
•
Absolute encoder offset
SAV blocks and user-defined blocks with retain behavior.
Non-volatile data and real-time clock properties
Non-volatile data
Non-volatile data resides in the
FRAM of SIMOTION D410.
No
Unlimited
SIMOTION SCOUT
Configuration Manual.
DCC Programming
Real-time clock
The real-time clock is backed up using
SuperCap.
No
At least 5 days
Programming Manual.
Commissioning Manual, 05/2009
D410