S7-1200 và các lỗi xảy ra

[minhlaminhmo]

demdong làm theo cách này xem sao

"Resetting to factory settings
You can reset an S7-1200 to its original factory settings under the following conditions:

No memory card is inserted in the CPU.
The CPU has an online connection.
The CPU is in STOP mode.
Note
If the CPU is in RUN mode and you start the reset operation, you can place it in STOP mode after acknowledging a confirmation prompt.

Procedure
To reset a CPU to its factory settings, follow these steps:

Open the Online and Diagnostics view of the CPU.
Select "Reset to factory settings" from the "Functions" folder.
Select the "Keep IP address" check box if you want to retain the IP address or the "Reset IP address" check box if you want to delete the IP address.
Click the "Reset" button.
Acknowledge the confirmation prompt with "OK".
Result
The module is switched to STOP mode if necessary, and it is reset to the factory settings:

The work memory and internal load memory and all operand areas are cleared.
All parameters are reset to their defaults.
The diagnostics buffer is cleared.
The time of day is reset.
The IP address is retained or deleted based on the setting you made. (The MAC address is fixed and is never changed.)"

Em chỉ trích từ trang siemens support thôi, anh kiểm chứng thử xem, mà làm cái này là mất hết dữ liệu luôn nha demdong, hay anh muốn cách khắc phục mà vẫn giữ nguyên được chương trình.