Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001

31.7.4 Profibus

 

· A control network that is popular overseas, and primarily pushed by Siemens.

 

· General features include,

  1. - A token passing between up to three masters
  2. - maximum of 126 nodes
  3. - straight bus topology
  4. - length from 9600m/9.6Kbps with 7 repeaters to 500m/12Mbps with 4 repeaters
  5. - 2 data lines and shield
  6. - power needed at each station
  7. - uses RS-485
  8. - 2048 bits of I/O per network frame
  9. -