The best replacement for ethernet ip is modbus tcp.

The best alternatives to ethernet ip are rated as following:
★★★★★  modbus tcp
★★★★  devicenet
★★★★  ethercat
★★★  profinet
★  controlnet
  modbus
  modbus tcp ip
  ethernet tcp\/ip

Your alternative for ethernet ip is not listed? Suggest!
Speaking about ethernet ip, one probably shouldn't forget about compactlogix.

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



Google Trends

Scale is based on the average worldwide traffic of ethernet ip in all years. Click on graph for more.
ethernet ip
modbus tcp
devicenet