Device and method for routing serial traffic of a building management system

The building controller enables remote monitoring and analysis of serial traffic by routing non-IP serial traffic to a remote device, addressing the inconvenience and cost of on-site intervention in diagnosing network issues.

WO2026128197A1 Publication Date: 2026-06-18SIEMENS INDUSTRY INC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SIEMENS INDUSTRY INC
Filing Date
2025-11-20
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Existing building management systems require on-site physical intervention for diagnosing serial network traffic issues due to the use of older network communication technologies, which is costly and inconvenient.

⚗Method used

A building controller that routes non-IP serial traffic to a remote device via an IP network using a frame router, enabling remote monitoring and analysis of serial traffic without physical presence.

🎯Benefits of technology

Facilitates quick and efficient diagnosis and resolution of network traffic issues by allowing remote monitoring and analysis, reducing the need for costly on-site visits.

✦ Generated by Eureka AI based on patent content.

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Abstract

A building controller (230) and a method thereof routes serial traffic in a building management system (200). Non-IP serial traffic is read from a non-IP network (250) of building devices (240) managed by the building controller (230) and forwarded to a building network stack (238) operating on the building controller (230). The building controller (230) performs building controller operations based on data stored at the building network stack (238). The non-IP serial traffic is also mirrored to a frame router (232) operating on the building controller (230) in response to detecting that remote traffic monitoring has been enabled. The frame router (232) identifies a destination interface (236) of the building controller (230) to route the non- IP serial traffic and generates a data packet that includes the non-IP serial traffic and an IP header. The data packet is provided to an IP network (210) of building management devices (220) connected to the building controller (230), including a remote device (222) which has a serial traffic analyzer.
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