How to Use Siemens Memory Card to clear password or restore factory Settings
Published:2023-03-01 16:34:31
If the customer forgets the password previously set to the S7-1200, the S7-1200 internal program and password cannot be cleared by "restoring factory Settings", so the best way to clear is to use the memory card. Detailed steps are as follows:
1. Use a memory card, plug it into your computer's card reader, and empty the internal files.
2. In the TIA PORTAL, change the working mode of the memory card to "Transfer" card, as shown in Figure 4.
3. Power off the S7-1200.
4. Insert the memory card into the S7-1200CPU.
5. Power on the S7-1200. The CPU stops.
6. When the MAINT indicator is blinking, power off the S7-1200.
7. After removing the memory card, power on the S7-1200, and clear the CPU password and program.
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