Yellow connects you to success


The history of automation basically starts at the same time as the history of the industrial revolution. As soon as James Watt got the Newcomen's steam engine to work, he started thinking about optimizing its control system. The question: How can I operate a steam engine independent of load with a constant and consistent number of revolutions? The solution was a centrifugal governor. From then on, the workers on the machine could concentrate on production. Regulating the number of revolutions per minute was automated.

Up until the 1960s, automation systems were marked by mechanic solutions. Computers did not exist yet, logical links between machine and system were hard-wired with relay contacts. The introduction of process computers and programmable logic operation controllers made it possible to react in a flexible manner to the numerous requests for automation systems. System solutions increased explosively and today, a multitude of options is available. More so than ever, it is important to not lose sight of the forest for the trees.



The "symbol" for AS-Interface technology: The yellow two-conductor flat cable.





Today, and unfortunately way too often, the degree of innovation of technical systems is proportional to the complexity of the developed solution. Economically, this leads to high investment costs in the beginning, and therefore to a slow acceptance of the technology itself. AS-Interface was developed with a totally different goal in mind. It was supposed to be easy. Easy and economical.





The development goal for AS-Interface was not to come up with a universal fieldbus for all aspects of automation, but with an economically reasonable system for the lower field level. AS-Interface was developed to link binary sensors and actuators by using a simple installation technology, and then to connect them to a higher control level. The inventors of AS-Interface clearly reached their goal. Until this very day, the system shines because of the following impressive advantages:


  • AS-Interface uses a single two-conductor flat cable to supply power to the components and enable data transfer. The complex cable trees necessary for parallel wiring are omitted, and therefore considerable savings in terms of material and installation costs are achieved.
  • AS-Interface is installed using a simple piercing technology. The Click-and-Go principle enables the installer to mount components safely and free of errors.
  • AS-Interface can be used with any network topology.
  • AS-Interface impresses through its easy configuration options. This not only reduces the expenditures during start-up, but also enables faster troubleshooting and therefore reduces plant down times.



This is how easy installation can be using the AS-Interface piercing technology:

Mounting base and module of the AS-Interface component are separated.

The AS-Interface cable - through its asymmetrical shape installations are always free of errors - is placed in the mounting base of the AS-Interface component. 

Mounting base and module are installed by using a simple tool.


Piercing technology guarantees the reliable connection of the AS-Interface components to the AS-Interface network.

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