Assets

Users have numerous facilities for communication and line diagnostics, as well as for diagnostics of the intelligent field devices connected. Furthermore, the PROFIBUS is fully integrated into the global asset management with the Maintenance Station of the SIMATIC PCS 7 process control system.

For process automation, the following PROFIBUS functions are particularly relevant in addition:

• Integration of previously installed HART devices
• Redundancy
• Safety-related communication with PROFIsafe up to SIL 3 according to IEC 61508
• Time-of-day synchronization
• Time tagging

PROFIBUS transmission systems

PROFIBUS DP

• RS 485
  Simple and low-cost electrical transmission system based on shielded two-wire cable.
• RS 485-iS
  Intrinsically-safe electrical transmission system for hazardous areas up to Ex zone 1 or 21, implemented using a shielded two-wire cable with a transmission rate of 1.5 Mbps.
• Fiber-optic
  Optical transmission system with glass or plastic fiber-optic cables, for fast transmission of large quantities of data in environments with high interferences or for covering long distances.

PROFIBUS PA

• MBP (Manchester coded; bus powered)
  Intrinsically-safe transmission system which permits simultaneous transmission of digital data and powering of the field devices by means of a two-wire cable. It is suitable for direct connection of devices in environments up to Ex zone 1 or 21 and associated sensors/actuators in environments up to Ex zone 0 or 20.