The best replacement for controllogix is compactlogix.

The best alternatives to controllogix are rated as following:
★★★★★  compactlogix
★★★★  plc5
★★★★  slc
★★★  guardlogix
★★  slc 500

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

Other search terms related to controllogix and their ratings are:
★★★★★ profibus
★ plc5 io
You have in mind a companion for controllogix and it is not yet here? Propose!



Google Trends

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controllogix
compactlogix
plc5