In our last few blog posts, we’ve been exploring various single-cable electrical interfaces for motor feedback encoders. Now, we turn to BiSS Line—an open-source iteration of the BiSS protocol that, like SCS open link, supports single-cable technology. Let’s take a closer look at some of its defining features and benefits:

What is BiSS Line? A real-time digital interface for sensors, inverters and drives, BiSS Line transmits 8B10B-encoded data using 2- or 4-wire technology at a transmission speed of 12.5 MBaud. Like SCS open link, BiSS Line utilizes the RS485 transmission standard and is certified up to SIL3.

When do you use BiSS Line? This interface is typically used in industrial or robotic applications requiring short cycle times and safe, flexible data transmission. Typical applications include motor feedback systems, as well as rotary and linear encoders with a 2- or 4-wire interface.

What are its unique design features? BiSS Line integrates a bus structure for multiple slaves and also implements forward error correction (FEC), which enhances data reliability in the presence of faulty cables and connectors, as well as over noisy communication channels. It is fully compatible with existing single-cable infrastructure, including transmission technology, cables and connectors, as well as BiSS and BiSS Safety protocols.

What are its advantages? Thanks to its single-cable design, BiSS Line reduces the number of wires in your system, leading to significant cost and energy savings and reducing the chances of connector failures. Because it transmits power and encoder signal across one cable, you also don’t have to worry about finding space for additional connectors on smaller, space-constrained motors. And finally, because BiSS Line is an open-source interface, you don’t have to worry about licensing fees.

To learn more about BiSS Line, visit our BiSS webpage.