• Source: BiSS interface

The open source BiSS interface (bidirectional/serial/synchronous) is based on a protocol which implements a real time interface. It enables a secure serial digital communication between controller, sensor and actuator. The BiSS protocol is designed in B mode and C mode (continuously bidirectional mode). It is used in industrial applications which require transfer rates, safety, flexibility and a minimized implementation effort. The BiSS interface has roots in SSI and a simplified INTERBUS. The proprietary standards, Hiperface and EnDat are competing solutions.




Application


Position sensor system
Rotary encoder (absolute encoder)
Linear position sensors (absolute encoder)
Drive control (motor feedback)
Intelligent sensor system (smart sensors)
Robotics




BiSS features


Open source
Hardware compatible for SSI standard (synchronous serial interface)
Cyclic reading of sensor data up to 64 bit per slave
Transmission of status data, parameter, measured temperature value, configuration description, etc.
Isochronal, real time capable data transmission
bidirectional communication with two unidirectional lines
Point-to-point or multi-slave networks
Maximum user data rate, transmission data depending on driver and line of e.g. RS-422: 10 MHz, 1 km; LVDS: 100 Mbit/s
Independent of the applied physical layer
CRC secured communication (sensor data and control data secured separately)




Characteristics of BiSS C


Continuous sensor data transmission without interruption while using control data
Activation of actuators in bus during sensor data transmission
Broader standardization through BiSS profiles, BiSS EDS (electronic data sheet), BiSS USER DATA, etc.
Full compatibility of BiSS identifier (already defined in BiSS B)




History of BiSS in position sensor system


BiSS was showcased in 2002 by its founders iC-Haus GmbH
Since BiSS B is not motor feedback compatible, BiSS C has been preferred in the market
All patent cases against BiSS B were dropped in 2012:
EP 0790489B1: "Mode switching by frequency comparison"
DE 19701310B4: "Mode switching as such"
EP 1168120B1: "Block transmission of additional uncritical data"
Multi-cycle data (MCD) are no longer utilized in the position sensor system with BiSS
Because BiSS utilizes the PHY of SSI [(RS-422)], it develops as the successor of the SSI interface in automation




References






External links


BiSS Interface Website
BiSS C Protocol Description (English)

Kata Kunci Pencarian:

• Akses bersyarat
• BiSS interface
• Synchronous Serial Interface
• Biss
• INTERBUS
• Linear encoder
• Direct-drive sim racing wheel
• Christopher G. Kennedy
• CREST (securities depository)
• Blue Origin NS-17
• Rotary encoder