For the systems that demand uncompromising reliability and high speed performance, only a dedicated network can deliver. MELSECNET/H and it's predecessor MELSECNET/10 use high speed, redundant functionality to give deterministic delivery of large data volumes.
This is Mitsubishi's own Ethernet network with some dedicated modifications. MELSECNET has a dual cable configuration. This offers high network availability, as cable breaks are automatically detected and the active communication channel is automatically re-routed around the suspected break. The MELSECNET network also allows a floating master. This allows other PLCs on the network to take up the position of network master should a fault develop with the currently selected master. The MELSECNET allows very large network coverage of up to 30 km.
Highlights:
- Easy PC, HMI and PLC connection
- High-speed data communications with large data volumes
- Reliable and robust data transfers
- Redundancy functions
- 10/25 Mbaud data transfer rates
- Maximum network distance 30km, up to 255 segments
- Simple configuration, remote programming
- Floating master
In addition to cyclical data communications you can also send data directly from any station to any other station - also across several network boundaries - and read data from the other station. Multitasking and broadcasting functions are also supported.