61428

Error creating log file

Siemens · SINUMERIK 828D

What does 61428 mean?

An error occurred while the system was attempting to create a log file. The error code (%4) specifies the cause: either the number of log files in the current directory exceeds 99, or the existing log files are too long. This issue prevents further logging until resolved.

Common Causes

  • Maximum number of log files (e.g., 99) in the specified directory has been reached, preventing creation of new files.
  • Target storage device (e.g., CF card, hard drive) is full or has insufficient free space for a new log file.
  • An existing log file (e.g., _LOG.SCD) has grown excessively large, exceeding system limits for a single file.
  • File system corruption on the storage device preventing new file creation or modification.
  • Write protection enabled on the storage device or directory (e.g., hardware switch on CF card, software permissions).

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    1. Access the specified log file directory (e.g., via network share or direct access to the NC file system) and delete old, unneeded log files to free up space.

  2. 2

    2. Check the free storage space on the NC's target drive (e.g., D: drive, CF card) and archive or delete non-essential files to create more space.

  3. 3

    3. If an existing log file is excessively large, rename or move it to force the system to create a new one.

  4. 4

    4. Perform a file system check (e.g., using system utilities if available) on the storage device to detect and repair any corruption.

  5. 5

    5. Verify that write protection is disabled on the storage device (e.g., physical switch on CF card) and that the system has write permissions to the log directory.

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Verified technical data. Last updated: March 2026

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