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History and development

INTERBUS is one of the most common international fieldbus systems. It performs two tasks in automation technology. On the one hand, INTERBUS transmits data between the PLC (programmable logic controller), software controllers or robot controllers, for example. On the other hand, the system connects actuators, sensors, operator panels, and drives in the field.

Recognized standard

The standardized INTERBUS fieldbus system  

The standardized INTERBUS fieldbus system

When an automation solution is near to the process, fast data transmission (< 5 ms) between controllers and field devices is extremely important. INTERBUS transmits time equidistant signals and ensures a high degree of data transmission security.

The INTERBUS system was originally developed by Phoenix Contact. It has been available for use in automation technology since 1987. The open system has since become an established solution for serial data transmission in sensor/actuator applications.

INTERBUS is a standardized fieldbus system: it is standardized according to European standard EN 50254, international standard IEC 61158, and German national standard DIN 19258.

INTERBUS protocol chips

INTERBUS protocol chips  

INTERBUS protocol chips

INTERBUS protocol chips are the most important electronic components within an INTERBUS system. They act as couplers in the INTERBUS controller board and in the INTERBUS modules.

Owing to the various demands placed on the INTERBUS system, Phoenix Contact developed its own range of protocol chips:

  • Solutions for the INTERBUS controller board (master protocol chip)
  • Solutions for INTERBUS modules (slave protocol chip)

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Further information
  • History and development


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