Modernise language and techical clarifications for modbus article - #5458
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Steve-Mcl
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ZJvandeWeg
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Aug 4, 2026
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| On a serial bus, valid device addresses are **1–247**. Address **0 is the broadcast address** — a write sent to unit 0 goes to every device on the bus and none of them reply, so a read addressed to unit 0 will always time out. Addresses 248–255 are reserved. Native Modbus TCP devices often ignore the unit ID altogether (`0`, `1`, and `255` are all common), but it matters as soon as a gateway sits in front of serial devices. | ||
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| {% note %} |
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@Yndira-E When we migrate the docs, we need to check for {% note %} support too
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I suspect this should've been merged @sumitshinde-84 ? |
ZJvandeWeg
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August 4, 2026 00:15
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@sumitshinde-84 @Steve-Mcl The test failures seem related? |
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test were failing because of broken image fixed it here FlowFuse/flowfuse#8023 (review) |
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Modernise language and techical clarifications
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