Dev Tools · 1h ago
Modbus Proxy Reliability: Timeouts, Retries, and Staleness Detection
A developer shares how to build a robust Modbus proxy that handles device disconnects and stale data. The fix includes per-batch timeouts, 50ms spacing between reads, and a staleness indicator for Home Assistant. The approach prevents silent failures where the proxy serves outdated values.
Meridian48 take
The post is a practical guide for IoT developers, but its core lesson—making failure visible—applies broadly to any caching system.
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A Robust Modbus Proxy: Reconnect, Stale-Cache Detection and Timeouts Done Right →
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modbus-proxyiot-reliability