PLC–HMI tag checker
Compare PLC tag definitions with HMI references in CSV exports. Find missing PLC tags, duplicate references and declared data type mismatches.
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PLC–HMI tag checker
An HMI screen can reference a tag that was renamed or removed from a PLC export. Assign the PLC definitions file and the HMI references file explicitly, then map their name and type columns. The report identifies missing references and exact type differences. It works with normalized CSV tables; it does not open proprietary project files or inspect a running controller.
How to use this tool
- Choose your source file, drag it into the upload area, or import a direct public file URL.
- Review the settings and create your result.
- Download and check the output before using it.
Supported input formats
CSVTSV
Available settings
- PLC definitions file
- HMI references file
- PLC tag name column
- PLC data type column
- HMI tag name column
- HMI data type column
Output and limitations
Compare PLC tag definitions with HMI references in CSV exports. Find missing PLC tags, duplicate references and declared data type mismatches.
Assign a different file to each role. Use normalized CSV exports with simple tag names and exact declared types. Arrays and nested structured references are reported as unsupported. No equipment connection or vendor project import is performed.
What should I check before using the result?
Assign a different file to each role. Use normalized CSV exports with simple tag names and exact declared types. Arrays and nested structured references are reported as unsupported. No equipment connection or vendor project import is performed.
Where are my files processed?
Selected files are processed in your browser. Importing a URL uses the download service to retrieve the remote file.
What if processing fails?
Check the supported formats and file limits, then try a smaller file. Keep an original copy. A clear error message will explain an unsupported input or an unavailable processing service.