PLC concepts
5.5 Using a memory card
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
149
To download the firmware update to your memory card, follow these steps:
1. Insert a blank SIMATIC memory card that is not write-protected into an SD card
reader/writer attached to your computer. (If the card is write-protected, slide the
protection switch away from the "Lock" position.)
You can reuse a SIMATIC memory card that contains a user program or another firmware
update, but you must delete some of the files on the memory card.
To reuse a memory card, you
delete the "S7_JOB.S7S" file and any existing "Data
Logs" folders or any folder (such as "SIMATIC.S7S" or "FWUPDATE.S7S") before
downloading the firmware update. Use Windows Explorer to display the contents of the
memory card and to delete the file and folders.
Do NOT delete the hidden files "__LOG__" and "crdinfo.bin" from the memory card.
The "__LOG__" and "crdinfo.bin" files are required for the memory card. If you delete
these files, you cannot use the memory card with the CPU.
2. Select the zip file for the firmware update that corresponds to your module, and download
it to your computer. Double-click the file, set the file destination path to be the root
directory of the SIMATIC memory card, and start the extraction process. After the
extraction is complete, the root directory (folder) of the memory card will contain a
"FWUPDATE.S7S" directory and the "S7_JOB.S7S" file.
3. Safely eject the card from the card reader/writer.
To install the firmware update, follow these steps:
Verify that the CPU is not actively running a process before installing the firmware update.
Installing the firmware update will cause the CPU to go to STOP mode, which could affect
the operation of an online process or machine. Unexpected operation of a process or
machine could result in death or injury to personnel and/or property damage.
Before inserting the memory card, always ensure that the CPU is offline and in a safe state.
1. Insert the memory card into the CPU. If the CPU is in RUN mode, the CPU then goes to
STOP mode. The maintenance (MAINT) LED flashes to indicate that the memory card
needs to be evaluated.
2. Power-cycle the CPU to start the firmware update. Alternative methods for rebooting the
CPU are to perform either a STOP-to-RUN transition or a memory reset (MRES) from
STEP 7.
Note
To complete the firmware upgrade for the module, you must ensure that the external 24
V
DC power to the module remains on.
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