The best replacement for plc is dcs.

The best alternatives to plc are rated as following:
★★★★★  dcs
★★★★  microcontroller
★★★  llc
★★★  pac
★★  rtu
★★  plc
★★  ltd
★  arc
★  ddc
★  fpga
★  microprocessor
★  arduino
★  ocs
★  scada
★  relay
★  occ
  inc
  limited
  unilever nv
  pic
  sole trader
  pc control
  nrotc
  pid
  sdlc
  pc based control
  dcs systems
  ddc controls
  bms
  microcontrollers
  pld
  can bus
  cnc
  bpl

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

Other search terms related to plc and their ratings are:
★★★★★ hmi
★★★★ touch screen
★★★ modbus
★ labview
★ scada
★ prejudice save as to costs
pid
opc
bacnet
You have in mind a companion for plc and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of plc in all years. Click on graph for more.
plc
dcs
microcontroller