Homework Soursewhat is the diffrence between profibus and profinet green p
what is the diffrence between profibus and profinet. (green + purple)
i see factory devices wired in this type of ethernet cable (communications i assume) why selected one for each and not ethernet.
please explain
Solution
these are the basic difference
PROFIBUS is a classical serial fieldbus; PROFINET is an Industrial Ethernet. PROFINET is faster with more bandwidth and larger messages
| PROFIBUS | PROFINET | |
| organization | PI | |
| application profiles | same | |
| concepts | Engineering, GSDs | |
| physical layer | RS-485 | Ethernet |
| speed | 12Mbit/s | 1Gbit/s or 100Mbit/s |
| telegram | 244 bytes | 1440 bytes (cyclic)^ |
| address space | 126 | unlimited |
| technology | master/slave | provider/consumer |
| connectivity | PA + others* | many buses |
| wireless | possible* | IEEE 802.11, 15.1 |
| motion | 32 axes | >150 axes |
| machine-to-machine | No | Yes |
| vertical integration | No | Yes |
