BUS System

BUS Systems are used as a communication medium for sectored actuators, sensors and steering in the automation industry and where electronic modules have to be connected easily. Only one cable connects all components.

Field bus is the generic name for all bus systems which are used for the metrology, steering and controlling engineering.

These are:

  • CAN
  • ProfiBUS
  • InterBUS
  • ASI BUS

According to DIN (German Institute for Standardization) standard a field bus in general should transmit a small volume of data in fast time
series on a digital compare between sensors, actuators and steering. as the requirements to the bus system depends on the level of automation, there is no field bus which can solve all tasks optimal together.

Following table shows a short overview of the most important features of the three most popular BUS systems:

BUS systems Highest BPSe Largest Dimensions Maximal number
of participants
Standardization
CAN BUS 1 Mbit/s to 40 m 1 km at 50 Kbit/s 64(128) ISO 11898
ProfiBUS 500 Kbit/s to 200 m 1200 m at 93 Kbit/s 256 ISO 19245
InterBUS 500 Kbit/ s to 40 m 12,8 km at 400 m Segments 256 ISO 19258

Profi-BUS Family

EN 50170 Volume 2 and DIN 19245 Part 1 to 4
Device profiles
Application profiles
Automation for
General Purposes
PROFIBUS-FMS
Universal

Large variety of applications
Multi-Master communication
Factory
Automation
PROFIBUS-DP
Fast

Plug and Play
Efficient and cost effective
Process
Automation
PROFIBUS-PA
Application oriented

Powering over the BUS
Instrinsic Safety

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