Backing Up, Restoring And Deleting Sinamics Integrated Nvram Data - Siemens SIMATIC S7-1500 System Manual

The SIMATIC Drive Controller CPU supports the storage of multilingual project texts in up to
three different project languages. If the project texts belonging to a specific project language
nevertheless exceed the memory space reserved for them, the project cannot be loaded to
the CPU. The operation is canceled with a message indicating that not enough free storage
space is available. In such a case, take measures to reduce the required storage space, for
example by shortening comments.
Note
Size of the SIMATIC Memory Card
If the storage space needed to load projects exceeds the storage space available on the
SIMATIC Memory Card in use, loading to the CPU is canceled with an error message.
Therefore, make sure that there is enough available storage space on your SIMATIC
Memory Card for loading projects.
Please remember when selecting the memory card capacity that the project data of both the
CPU and SINAMICS Integrated is stored on the memory card.
You can find information on reading out the storage space capacity utilization of the CPU
and the SIMATIC Memory Card in the Structure and Use of the CPU Memory
(https://support.industry.siemens.com/cs/ww/en/view/59193101) function manual.
You can find information on parameter assignment of multilingual project texts in STEP 7 in
the STEP 7 online help.
11.8.2

Backing up, restoring and deleting SINAMICS Integrated NVRAM data

Backing up the non-volatile memory
The SINAMICS Integrated has a non-volatile memory, NVRAM (Non-Volatile Random
Access Memory), for operating data. Data stored in this memory includes the data from the
fault buffer, diagnostics buffer and message buffer.
In certain circumstances, for example, a defect or device replacement, this data needs to be
backed up. After changing the hardware, you transfer the backup data back to the NVRAM.
p7775 (control unit parameter) is used to execute the following operations:
● p7775 = 1 backs up NVRAM data to the memory card.
● P7775 = 2 copies the NVRAM data from the memory card to the NVRAM.
● p7775 = 3 deletes the data in the NVRAM.
A POWER ON is executed automatically once the data has been successfully deleted. If the
operation was successful, p7775 = 0 is automatically set. If the operation was not
successful, p7775 displays an error value. You can find further details on error values in the
SINAMICS S120/S150 list manual
(https://support.industry.siemens.com/cs/ww/en/view/109763271).
SIMATIC Drive Controller
System Manual, 11/2019, A5E46600094-AA
11.8 Configuring SIMATIC Drive Controller backup and restore
Commissioning
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