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lmxopcua/docs/plans
Joseph Doherty fbe393471e
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docs(driver-expansion): descope Modbus direct-serial — RTU-over-TCP only
Per user decision 2026-07-15: the direct-serial transport (ModbusRtuTransport,
System.IO.Ports, serial config fields, socat live rig) is not being built.
Serial RS-485 buses are reached exclusively via serial->Ethernet gateways
(Moxa NPort etc.) using the new ModbusRtuOverTcpTransport — zero new package
deps, no container device mapping, reuses the hardened socket lifecycle.

ModbusTransportMode shrinks to Tcp|RtuOverTcp (Rtu member reserved). The
direct-serial design is kept in the RTU doc's §2b as a marked record,
including the R2-01 SerialPort-BaseStream-ignores-ReadTimeout trap.
2026-07-15 16:45:40 -04:00
..