Properties Of The User Memories - Siemens SIMOTION D410 Commissioning Manual

Commissioning (hardware)
3.5 User memory concept
3.5.2

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 3-1
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 SIMOTION data
(_savePersistentMemoryData), and backing up data such as retain variables.
With DCC SINAMICS blocks, data are only backed up using FRAM, i.e. not
_savePersistentMemoryData.
For additional details, see the
The SIMOTION D410 backed-up data have the following features:
Table 3-2
Characteristic
Location
Back-up battery
Backup time
42
SIMOTION SCOUT Configuration Manual.
Content of non-volatile data
Content
● Last operating mode
● IP parameters (IP address, subnet mask, router address)
● DP parameters (PROFIBUS DP address, baud rate)
● Diagnostic 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.
("SAV = SAVE", blocks for the non-volatile data backup)
DCC Programming Programming Manual.
Non-volatile data and real-time clock properties
Non-volatile data
Non-volatile data resides in the
FRAM of SIMOTION D410.
No
Unlimited
Real-time clock
The real-time clock is backed up using
SuperCap.
No
At least 5 days
Commissioning Manual, 04/2014
SIMOTION D410