Profibus

Profibus (Process Field Bus) is a standard for fieldbus communication in automation technology.

There are three variants of Profibus, whereas DP (decentralized periphery) is the most used: Profibus DP for control through a central control in production engineering. A lot of standard diagnostics options are in the foreground. Another application is the linking of "distributed intelligence", i.e. the networking of multiple controls among each. Data rates up to 12 Mbit/sec. on twisted two-wire cables are possible.

The DP application layer was defined in three steps. The origin DP protocol (formalized in 1993) is colloquially named as "DP-V0". The following functions are defined per level:
  • DP-V0 - the cyclic exchange of data and diagnostics.
    Devices with this range of functions are especially used in general automation technology and machine control.
  • DP-V1 - the acyclic data exchange and alarm handling.
    Devices that support these extensions can be found especially in process engineering.

ISO/OSI Model

7 Application Layer DP-V0DP-V1
6 Presentation Layer n/a
5 Session Layer n/a
4 Transport Layer n/a
3 Network Layer n/a
2 Link Layer FDL (Fieldbus Data Link)
1 Physical Layer EIA-485

Available Protocol Stacks

Profibus-DP, Slave (ORSI)

Profibus-DP, Master

Profibus-DP, Slave

Profibus-DPV0, Slave (Extended Version)

Applicable Products

  • ipConvLite
    ipConvLite

    Universal protocol converter for small and distributed applications

  • ipConvLite/MEC2PBM
    ipConvLite/MEC2PBM

    Universal protocol converter with integrated PROFIBUS-DP, master interface

  • ipConvLite/MEC2PBS
    ipConvLite/MEC2PBS

    Universal protocol converter with integrated PROFIBUS-DP, slave interface

  • ipConv
    ipConv

    Universal protocol converter for highest degree of flexibility

  • ip4Cloud
    ip4Cloud

    Link critical processes securely to IT/Cloud/SCADA services

  • ip4Cloud/SEC3PB
    ip4Cloud/SEC3PB

    Capture PROFIBUS data by eavesdropping and transmit it to Cloud/IT or SCADA services

References

  • Power Plant Boxberg
    Power Plant Boxberg, Germany

    Products: ipConvLite ipConvPM
    Protocol Stacks: IEC 60870-5-104, Slave IEC 60870-5-104, Master Modbus, Slave Profibus-DP, Master

  • IBIRITE
    IBIRITE, Brazil

    Products: ipConvLite/MEC2PBS
    Protocol Stacks: Profibus-DP, Slave (ORSI) IEC 60870-5-101, Master

  • TOTAL AKPO
    TOTAL AKPO, Nigeria

    Products: ipConvLite/MEC2PBS
    Protocol Stacks: Profibus-DPV0, Slave (Extended Version) IEC 60870-5-104, Master