Logo Bihl+Wiedemann GmbH

Innovative Partner for Automation

Jochen Bihl and Bernhard Wiedemann


International Subsidiaries and Sales Partners

A combination of innovative strength and long-standing customer relationships has enabled us to grow continuously for many years. In addition to our headquarters in Mannheim, Bihl+Wiedemann owns subsidiaries in the USA, China, Turkey, Denmark and Spain. We are now also represented by international sales partners in more than 30 countries.

We are committed to environmental and climate protection

of solar cells are in operation at the Mannheim headquarters on the roofs and facades of our office and production building – the first ones since September 2010.

of electricity per year are generated by our system, of which we consume 54 %. 140,000 kWh is equivalent to the annual consumption of 800 large refrigerators with freezer compartments.

of our car pool  already consists of hybrid or electric vehicles – and the trend is rising sharply. We are also steadily expanding the number of our charging stations (18 as of June 2021).

Technological Principles


AS-Interface (ASi) is a globally standardized fieldbus system for the first level of automation. ASi connects sensors and actuators with a controller via a single two-conductor profile cable. The yellow ASi cable transmits power and data at the same time. The main benefits of ASi are, among others, dramatically less wiring, free choice of topology and cost-efficient integration of safety on the same infrastructure. The latest ASi-5 generation can now handle larger data volumes at much higher transmission speeds and it enables intelligent sensors such as IO-Link to be integrated with ease.


More about the AS-Interface

ASi Safety at Work

Safety-related aspects play an important role in an increasing number of automation solutions, especially where hazardous movements pose a safety risk to humans. Regulations in this regard are set out, for instance, in the EU Machinery Directive (Directive 2006/42/EC) or in the occupational safety regulations of the respective countries. Thanks to the Safety at Work concept of the AS-Interface, safety-related components, such as safe sensors and actuators as well as safety monitors, can be seamlessly integrated into almost all commonly used automation systems.


More about ASi Safety at Work

What sets Bihl+Wiedemann apart

DIN EN ISO 9001 certified

Quality management according to DIN EN ISO 9001.

The AS-Interface Masters

Professional partner for AS-Interface solutions.

Customized product solutions

Realization of specific automation solutions.

Certified according to DIN EN ISO 9001

Assuring consistent quality has always been of utmost importance for Bihl+Wiedemann. The company is DIN EN ISO 9001 certified.

The current certificate can be viewed here (PDF)