What is BiSS? Introduced at Hannover April 2002 Today there are more than 120 OEM licensees Open standard, non-proprietary protocol Fast, safe, synchronous serial “2-wire” link (10 Mbit/s) Isochronous real-time data acquisition Efficient transmission Networking capable: 8 devices per master

Industrial control systems overview Motor control is only as good as the motor-to- drive feedback

The Evolution of Precision Control Incremental Resolver Absolute + Sin/Cos Absolute High Speed Digital Serial

Achieving Superior Motor Feedback A wish-list of items that are most desirable in a perfect system. –Non-proprietary encoder protocol –Instantaneous updates on encoder position –Precision beyond the mechanical capability of the system –Noise immunity over long cable runs –Reduced total cost of ownership (cables, drives, electronics)

Classical Interface Concept

BiSS ® BiSS ® Interface Concept

Basic Encoder Position

Absolute Motor Feedback - Interfaces Compare and Contrast

BiSS ® BiSS ® Interface

BiSS ® Advantages of BiSS ® Increase communication (10MHz) –Improve velocity control –Performance that differentiates machines High resolution –Improve positional accuracy –Smooth movement Fully digital position information –Reduce conductors –Lower installation cost –Higher system reliability Provide open protocol

BiSS ® BiSS ® Proven Benefits Machine Tool- improved contours Elevator- improved speed control and long cable runs Medical Applications- smooth multi-axis control Injection Molding Machines- precision control Learn More...