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Dec 20, 2016

Fieldbus systems and components by Murrelektronik

In this article, we will explain exactly what a Fieldbus module is, how Fieldbus devices work and will also showcase Murrelektronik’s innovative Fieldbus products.

What is a Fieldbus connector?

The definition of a Fieldbus is a means of communication between input devices (sensors, switches, etc.) and output devices (valves, drives, indication lamps etc.) without having to connect each individual device back to the controller (PLC, Industrial PC etc.). Therefore, Fieldbus components can help in significantly reducing overall costs.

To speak to experts in Fieldbus systems & components, call Murrelektronik about your fieldbus requirements today on 0161 7283133, or email for more information.

In this article, we will explain exactly what a Fieldbus module is, how Fieldbus devices work and will also showcase Murrelektronik’s innovative Fieldbus products.

Fieldbus systems offered by Murrelektronik

As experts in Fieldbus architecture, Murrelektronik is able to provide a range of Fieldbus systems available to purchase. These include the Cube67MVK Metal and MVP12 Steel.  


Cube67 is Murrelektronik’s award-winning, modular fieldbus system that can communicate over most industrial communication protocols (fieldbus and industrial Ethernet) and is customisable to meet the specific needs of any given installation solution. Cube67 is known for its single cable technology, multi-function modules, flexible installation methods and robust, potted circuitry. The unique single cable module connection is able to transfer both power and data from a single bus node to connected modules, thereby simplifying the installation process. Cube 67 is suitable for the vast majority of industrial applications.

Purchase the Cube67 modular fieldbus system here

MVK Metal

The IP67 rated MVK Metal compact fieldbus have been designed for harsh environments. The metal housing has a special surface finishing that is welding spark resistant. MVK Metal modules are resistant to a whole series of coolants and lubricants, and for maximum strength against shock and vibration the electronics are fully potted. MVK Metal fieldbus I/O module are ideal for applications such as cutting machines, welding machines, machine tools, presses, metal forming, and foundry plants and forges.

Purchase the MVK Metal IP67 rated fieldbus module here

MVP12 Steel

Murrelektronik’s MVP12 Steel distribution box is made of high-quality stainless steel and, as such, is the perfect solution for a decentralised approach in Food and Beverage machines and installations. Given that routing cables while meeting hygienic requirements in Food and Beverage applications often requires a lot of effort, with the MVP12 Steel distribution box, eight sensor cables are replaced by one homerun cable, which significantly reduces installation time.

Purchase the MVP12 Steel here.

How does a Fieldbus work?

Before Fieldbus systems were introduced, computers would need to connect using direct serial connections whereby only two devices would be able to communicate per connection. However, the Fieldbus communication allows hundreds of analogue and digital points to connect at the same time, inevitably cutting down the amount of cables needed in an installation, whilst also reducing the length of the cable needed and saving on installation time and installation costs.

There are so many Fieldbus variants available because the manufacturers of automation equipment developed proprietary Fieldbuses with differing features and functions to best deal with their market niche and to compete with each other on a technical level. Therefore, not surprisingly, some buses are better at specific functions than others.

Some of the Fieldbus instruments that are available include the following:

  • AS-I Interface
  • Ethercat
  • Profinet
  • Canopen
  • Ethernet/IP
  • Sercos Interface
  • CC-Link
  • Ethernet Powerlink
  • Sercos the automation bus
  • CompoNet
  • Modbus
  • SmartWire-DT
  • DeviceNet
  • IO-Link
  • Ethernet
  • Profibus
  • Varan

Due to market pressure, most Fieldbuses now claim to be ‘open’ (some more so than others). This is because large end companies wanted to be able to connect and use the installed control platform (e.g. PLC) to communicate via the Fieldbus to specialist devices from a range of different manufacturers to essentially ‘talk’ to the control platform.

To speak to a Murrelektronik expert about your fieldbus requirements today, please call 0161 7283133 or email for more information.