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v1.5.3: Tag Error Isolation Enhancements

Introduces advanced tag-level fault isolation and connection error classification across protocol families.

Version 1.5.3 introduces a more advanced runtime error model that preserves per-tag quality isolation while improving protocol-level reliability decisions.

Tag Quality Isolation
Tag Quality Isolation

✨ Enhancements

Fieldbus Reliability Model

  • Protocol Error Safety: ProtocolError is now treated as connection-level by default to avoid masking real communication or session failures.

  • Source-Aware Classification: Tag-scope error detection now distinguishes adapter protocols (OPC UA, SNMP, MTConnect/Haas) from other field protocol families.

  • Address Validation Model: Tag error scope now uses protocol address parser checks aligned with Protocol Inspector findings instead of generic assumptions.

Performance Enhancements

  • Cached Parser Delegates: Address parse delegates are cached by protocol to minimize reflection overhead in hot error paths.

Proxus v1.5.3

Released on February 8, 2026