100302

Check Current User Level

Navigate to HMI → Diagnostics → Service → Access Authorization and verify current user level. Most diagnostic functions require level 4 (Service) or higher.

User level 0-2 are operator levels with limited diagnostic access

Login with Higher Authorization

Access HMI → Startup → Access Authorization, enter service password to elevate to level 4 or contact system administrator for appropriate credentials.

Never share service passwords with unauthorized personnel

Retry Data Access

Return to the original diagnostic screen and attempt to refresh the data view. The list image should now populate with proper authorization.

Some data requires NCK restart after authorization change

Check LUD Configuration

Navigate to HMI → Parameters → User Data → Local User Data and verify if the required LUD variables are properly defined with correct data types and ranges.

LUD variables must be defined before they can be accessed by diagnostic functions

Define Missing User Data

Create missing LUD entries using Parameters → User Data → Define Local Data. Ensure proper variable names, data types (REAL, INT, BOOL), and valid ranges are specified.

Incorrect data types can cause system instability

Activate Configuration

Execute NCK Reset (HMI → Diagnostics → Service → NCK → Reset) to activate the new LUD configuration and make data available to diagnostic functions.

Check NCK Communication Status

Navigate to HMI → Diagnostics → Hardware → NCK and verify communication status. Look for red indicators or timeout messages in the connection status.

Green status indicators confirm proper NCK communication

Verify Network Configuration

Check HMI → Startup → Network Configuration and ensure NCK IP address (typically 192.168.214.1) is correctly configured and reachable via ping test.

Never change network settings without documenting original configuration

Restart Communication Services

Perform HMI restart via HMI → Startup → Restart HMI, then verify communication re-establishment before attempting data access again.

Check Database Integrity

Navigate to HMI → Diagnostics → Service → Data Backup and run database consistency check to identify corrupted entries or missing parameter definitions.

Database errors often show specific parameter numbers that are corrupted

Restore from Backup

Access HMI → Startup → Data Backup/Restore and restore the most recent known good system backup, ensuring all user data and parameters are included in restoration.

Backup restoration will overwrite current settings - document any recent changes first

Verify Data Availability

After restoration, navigate back to the original diagnostic screen and confirm that the data list now displays properly without the 100302 alarm.

Check Installed Options

Navigate to HMI → Diagnostics → Version → Installed Options and verify that required software packages for the diagnostic function are present and licensed.

Advanced diagnostic functions often require specific option packages like Advanced Surface or Measuring Cycles

Verify License Status

Check HMI → Startup → License Management for expired or missing licenses. Note any red status indicators or expiration dates that may affect functionality.

Contact Siemens for license renewal - unauthorized license manipulation voids warranty

Install Required Options

If options are missing, contact Siemens service to obtain and install the necessary software packages and licenses for the required diagnostic functionality.