SIMATIC memory card
12.1 SIMATIC memory card - overview
Automation system
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System Manual, 12/2017, A5E03461182-AE
Removing the SIMATIC memory card
Only remove the SIMATIC memory card in POWER OFF or STOP mode of the CPU. Ensure
that no writing functions (online functions with the programming device, e.g. loading/deleting
a block, test functions) are active in STOP mode or 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.
Inserting the SIMATIC memory card in the CPU 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 (which means
the retentive data is deleted) and then goes to STOP.
Also note the following FAQ on the Internet
https://support.industry.siemens.com/cs/ww/en/view/59457183
) in connection with the
removal of the SIMATIC memory card.
Removing the 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 the contents of the SIMATIC memory card
You have the following options for deleting the contents of the SIMATIC memory card:
●
Delete files using Windows Explorer
●
Format with STEP 7 or via the display of the CPU
Note
If you format the card with Windows utilities, 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. If 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.
Summary of Contents for Simatic S7-1500/ET 200MP
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