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IEC 60870-5-104 Cause of Transmission (COT) Decoder

Decodes telecontrol cause of transmission codes into standard operational descriptions.

Notice: engineering verification utility. Use test or de-identified data and verify results independently before relying on them.

How it works

Standard: IEC 60870-5-104 Telecontrol Protocols

Formula: COT lookup table mapping integer values (1 to 47) to transmission reasons

Checks: Valid COT range; test flag extraction; originator address verification

Calculated locally in browser memory; nothing leaves your browser.

Deterministic local-first client-side execution. Provided as-is without warranty.