Troubleshooting steps
Check configuration settings, verify configuration file, reload configuration
HMI Error Codes
Siemens E21 – Configuration error
Configuration error
Details
Siemens E21 error on HMI indicates configuration error. Invalid configuration, missing settings, configuration mismatch. Check configuration settings, verify configuration file, reload configuration.
Error typeconfiguration
MeaningConfiguration error
Typical causesInvalid configuration, missing settings, configuration mismatch
SolutionsCheck configuration settings, verify configuration file, reload configuration
SeverityMedium
Catalog references
Where this appears
SiemensE21
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What does E21 mean on Siemens HMI?
E21 on Siemens HMI indicates configuration error. Invalid configuration, missing settings, configuration mismatch.
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