Siemens SIMATIC S7-1500/ET 200MP System Manual page 261

Commissioning
12.3 Procedure for commissioning the S7-1500 automation system
Removing the SIMATIC memory card
To remove a SIMATIC memory card, follow these steps:
1. Open the front cover.
2. Switch the CPU into STOP mode.
3. Press the SIMATIC memory card into the CPU with light pressure. Once it has clicked into
place, remove the SIMATIC memory card.
Only remove the SIMATIC memory card in POWER OFF or STOP mode of the CPU. Ensure that:
• No writing functions are active in STOP . Writing functions are online functions with the
PG/PC, for example loading/deleting a block and test functions.
• No writing functions were active before POWER OFF.
If you remove the SIMATIC memory card during a write process, the following problems can
occur:
• The data content of a file is incomplete.
• The file is no longer readable, or no longer exists.
• The entire content of the card is corrupted.
Please also note the following FAQ on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/59457183) for removal of the SIMATIC
memory card.
Reactions after removing/inserting the SIMATIC memory card
Inserting and removing the SIMATIC memory card in STOP mode triggers a re-evaluation of
the SIMATIC memory card. The CPU hereby compares the content of the configuration on the
SIMATIC memory card with the backed-up retentive data. If the backed-up retentive data
matches the data of the configuration on the SIMATIC memory card, the retentive data is
retained. If the data differs, the CPU automatically performs a memory reset. The retentive
data is deleted and CPU then goes to STOP.
The CPU evaluates the SIMATIC memory card and indicates this by flashing the RUN/STOP
LED.
Note
Using the SIMATIC memory card as a firmware update card
If you use the SIMATIC memory card as a firmware update card, removing and inserting the
card will not result in the loss of retentive data.
Reference
You can find additional information on the SIMATIC memory card in the function manual
Structure and use of the CPU memory
(https://support.industry.siemens.com/cs/ww/en/view/59193101).
260
Automation system
System Manual, 01/2023, A5E03461182-AK