Siemens SIMATIC S7-1500 System Manual page 112

Removal of the SIMATIC memory card
1. Open the front cover.
2. Switch the CPU into STOP mode.
3. Press the SIMATIC memory card into the CPU with light pressure. After audible
Reactions after removing/inserting the SIMATIC memory card
Inserting and removing the SIMATIC memory card in STOP, STARTUP or RUN 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 (which means the retentive data is deleted) and then goes to
STOP.
The CPU evaluates the SIMATIC memory card, and indicates this by flashing the
RUN/STOP LED.
Reference
Additional information on the SIMATIC memory card can be found in the SIMATIC memory
card (Page 149) section.
S7-1500 Automation System
System Manual, 02/2014, A5E03461182-AB
unlatching of the SIMATIC memory card, remove it.
Commissioning
9.3 Commissioning procedure
111