Modbus and profibus communication difference?

Interview Questions Instrumentation
1

The philosophy for modbus and profibus is same…the difference is

  1. modbus you can go up to 1200m only in the case of profibus you can go up to 2-5 km.
  2. In modbus the speed will be 125kbs where profibus it will be 1.5 mbs to 12mbs.
  3. In modbus you can connect maximum 32 devices for RS485 where in Profibus you can go upto 127devies without repeater.
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