The FC7551 Mini PCI Cards brings fieldbus functionalities to the Industrial PC in a compact construction. The bus interface is not implemented on the fieldbus card, but separately in the respective housing (device-specific). The FC7551 is available for Beckhoff Industrial PCs with Mini PCI option. Like the standard PCI cards, the Mini PCI variants are specifically optimised for fast controllers and real-time tasks:
The power of the Fieldbus Cards can be most easily seen in combination with the TwinCAT software PLC and NC. But other applications also benefit from the intelligent PCI cards that handle the fieldbus protocol efficiently on their own processors. The Fieldbus Cards are optionally available with 128 kbyte NOVRAM.
| Technical data | FC7551 |
|---|---|
| Fieldbus | SERCOS interface |
| Number of fieldbus channels | 1 |
| Data transfer rates | 2, 4, 8, 16 Mbaud |
| Interface to the PC | Mini PCI interface, 32 bit with 4 kbyte DPRAM per channel |
| Communication | SERCON 816 chip |
| Bus device | ≤ 254 |
| Cycle time | all cycle times supported by SERCOS interface (down to 62.5 µs) |
| Dimensions | 59.75 mm x 50.95 mm (type III A) |
| Operating temperature | 0…+55 °C |
| Driver | TwinCAT I/O and higher levels |
![]() |
![]() |
| Ordering information | FC7551-000x |
|---|---|
| FC7551-0000 | standard configuration (can only be ordered with a Beckhoff Industrial PC with Mini PCI option) |
| FC7551-0002 | configuration with 128 kbytes NOVRAM (can only be ordered with a Beckhoff Industrial PC with Mini PCI option) |
![]() |
![]() |
| Accessories | |
|---|---|
| TwinCAT I/O | I/O driver |
![]() |
![]() |
| System |
|
|---|---|
| SERCOS interface | For further SERCOS interface products please see the system overview. |
![]() |
![]() |