The best replacement for rtu is ascii.

The best alternatives to rtu are rated as following:
★★★★★  ascii
★★★  tcp
★★★  deed
★★★  plc
★★  ahu
★★  modbus tcp
★★  uptu
★★  ied
★★  tcp/ip
★  pup
  scada
  modbus plus
  arellano

Your alternative for rtu is not listed? Suggest!
Speaking about rtu, one probably shouldn't forget about plc.

Other search terms related to rtu and their ratings are:
★★★★★ plc
You have in mind a companion for rtu and it is not yet here? Propose!



Google Trends

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rtu
ascii
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