System overview PROFIBUS
As a fast, open bus system with line topology and terminators, PROFIBUS is widely used in automation technology. The PROFIBUS DP (Decentralized Periphery) variant for the fast exchange of data at sensor/actuator level is internationally standardized according to IEC 61158, IEC 61784 and EN 50170.
In PROFIBUS DP, central control devices (e.g. Industrial PCs or PLCs) communicate via a fast serial connection with decentralized input and output modules. RS485 is the most frequently used transmission technique, using a screened twisted pair cable. Data is mainly exchanged cyclically, although acyclic services (DP-V1) are available for parameterization and diagnosis.
PROFIBUS DP offers very short system reaction times: at a transmission rate of 12 MB, less than 2 ms are required to transmit 512 bits each of input and output data to 32 devices.
All Beckhoff PROFIBUS devices feature a high-performance protocol implementation and are certified by the PROFIBUS users organization (PNO).
PROFIBUS devices
Embedded PCs | Embedded PC with fieldbus interface PROFIBUS slave | |
Embedded PC with optional interface PROFIBUS master | ||
Embedded PC with optional interface PROFIBUS slave | ||
PROFIBUS master interface for Embedded-PCs CX1010, CX1020 and CX1030 | ||
PROFIBUS slave interface for Embedded-PCs CX1010, CX1020 and CX1030 | ||
EtherCAT Terminals | PROFIBUS master | |
PROFIBUS slave | ||
Bus Coupler | PROFIBUS Bus Coupler for EtherCAT Terminals | |
PROFIBUS DP/FMS Bus Coupler for Bus Terminals | ||
PROFIBUS „Economy plus“-Bus Coupler for Bus Terminals | ||
PROFIBUS „Compact“ Bus Coupler for Bus Terminals | ||
PROFIBUS „Economy plus“ Bus Coupler with fiber-optic connector for Bus Terminals | ||
Bus Terminal Controller | PROFIBUS Bus Terminal Controller | |
PROFIBUS „Compact“ Bus Terminal Controller | ||
PROFIBUS Bus Terminal Controller | ||
Fieldbus Box | PROFIBUS Compact Box | |
PROFIBUS Coupler Box | ||
PROFIBUS PLC Box | ||
Fieldbus Modules | Fieldbus modules with PROFIBUS interface | |
PC Fieldbus Cards | PROFIBUS PCI card | |
PROFIBUS PCI express card |