Using AS-Interface, safety-related components can be integrated as easily as standard devices, all over a single cable. This system meets the highest functional safety requirements, reaching up to PL e (EN ISO 13849) and SIL 3 (IEC 61508), while requiring minimal installation and wiring effort.
up to 60% cost reduction possible with AS-Interface
The idea: Simply safe
A two-conductor cable is all that's needed. Communications, energy, and safety run on a single cable. Piercing technology enables tool-free connections at any point, minimizing errors, saving time, and providing maximum flexibility—even for future expansions. The AS-Interface certification logo indicates devices that have been certified by the independent AS-Interface testing facility. Consequently, devices from different manufacturers can operate on the same AS-Interface network without any issues.
Safety at Work: Advantages
- Safe and standardized: PL e / SIL 3 possible
- One single cable, all signals: safety, data, and energy on a single cable
- Fast installation
- Simple planning and configuration: automatic address assignment, flexible topology
- Logical safety: convenient configuration
- Separation of PLC control and safety relay is possible
- Compatible and certified: Devices from various manufacturers can be mixed and matched
- Low cost: less cables, less effort, fewer errors
AS-Interface System Components
To add safety switches to an AS-Interface network, the following components are required:
- The safe component, i.e., a safety switch such as an emergency-stop or a door interlocking system.
- A safe disconnect device, AS-Interface uses the safety monitor.
- A power supply for network components.
- An AS-Interface master that can be integrated directly in a safety controller.
- The two-conductor AS-Interface profile cable is required if using piercing technology. Any other two-conductor cable can be used if not employing this advantageous technology.
- Optionally, additional devices like start buttons, sensors or actuators can be included.
