The fieldbus is operated from a hardware sequencer that stores the current process image in a dual-port RAM and assures hard real-time behaviour. This DP RAM forms the interface between the processor system and the fieldbus periphery.
The optical link reduces installation costs and improves electromagnetic compatibility. A 1 mm thick plastic fibre is used that can be placed by hand.
Facts
| Transfer rate | 11 MBit / s | |
| Latency for 16 Bit slaves | 4 µs | |
| Latency for 32 Bit slaves | 6 µs | |
| Medium | Fibre optics | |
| Cycle times | 0.05 .. 1ms |

