Operations And Their Effect On The User Memory - Siemens SIMOTION D4x5-2 Commissioning And Hardware Installation Manual

Commissioning (hardware)
5.3 User memory concept
● This data is lost when the SIMOTION D4x5‑2 is switched off.
● The "volatile SIMOTION data" area contains the following data:
– SIMOTION Kernel (D4x5‑2 firmware)
– Technology packages (TP)
– User data (programs, configuration data, parameter settings)
Figure 5-3
You can find additional information about memory management in SIMOTION in the
SIMOTION Runtime Basic Functions Function Manual.
5.3.3

Operations and their effect on the user memory

The operations marked with arrows in the figures entitled "SIMOTION D4x5‑2 memory model"
and "Configuration data and system variables in the volatile memory" and their effects on the
user memory are described below.
SIMOTION SCOUT download
The following data is transferred with "Download project to target system" or "Download CPU /
drive unit to target device" from the engineering system to the "volatile SIMOTION data" area:
● User data (units, configuration data, parameter settings, task configuration)
● Technology packages (TPs)
In addition, the IP and DP parameters are saved to the "non-volatile SIMOTION data" area.
The retain variables are set to their initial values, but this depends on the settings in SIMOTION
SCOUT. If the SIMOTION D4x5‑2 is switched off following the download, the volatile
SIMOTION data is lost.
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Configuration data and system variables in the volatile memory (memory concept, principle)
Commissioning and Hardware Installation Manual, 03/2018, A5E33441636B
SIMOTION D4x5-2