Siemens S7-1500 Function Manual page 63

SIMATIC memory card
4.1 SIMATIC memory card - Overview
Removing a SIMATIC memory card from Windows computers
If you are using the card in a commercially available card reader under Windows, use the
"Eject" function before you remove the card from the card reader. If you remove the card
without using the "Eject" function, you may lose data.
Deleting contents of the SIMATIC memory card
You have the following options for deleting the content of the SIMATIC memory card:
● Delete files with Windows Explorer
● Format with STEP 7
Note
If you format the card with Windows tools, you will render the SIMATIC memory card
unusable as a storage medium for a CPU.
Deletion of files and folders is permitted, with the exception of the "__LOG__" and
"crdinfo.bin" system files. The CPU needs these system files. When you delete the files, you
will no longer be able to use the SIMATIC memory card with the CPU.
If you have deleted the "__LOG__" and "crdinfo.bin" system files, format the SIMATIC
memory card as described in the following section.
62
Structure and Use of the CPU Memory
Function Manual, 10/2018, A5E03461664-AC