POSITAL’s IXARC high-precision magnetic absolute rotary encoders will be available with a BiSS-C interface. Encoders with this interface are ideal for commutation and position feedback on brushless dc servo motors and are also a good fit for motion control applications, such as medical equipment. They feature robust design, 17-bit resolution and good dynamic response (up to 12,000 rpm).

POSITAL’s IXARC encoders with the BiSS-C interface are based on the company’s kit (modular) encoders. Multiturn variants feature a 32-bit rotation measurement range (over two billion revolutions). The rotation counter is self-powered, using Wiegand energy-harvesting technology, eliminating the need for backup batteries or gear drive systems.

Like other POSITAL encoders, the BiSS-C enabled products are available in a wide range of mechanical configurations, with multiple options for housing and flanges, shaft type, and level of environmental protection. They are available with a 36-mm housing, enabling them to fit into the same mounting footprint as the common size 15 resolvers. However, unlike resolvers, IXARC encoders offer multiturn absolute digital position measurements, eliminating the need for an A/D converter.

BiSS-C (Bidirectional/Serial/Synchronous-Continuous) is a high-performance interface that supports real-time communications between control devices and sensors/actuators in robots and other automation systems. The interface also enables the controller to set operational parameters in subordinate devices. Communications is based on point-to-point RS-422 connections with the possibility of daisy-chaining several devices together for more efficient cable layouts. The BiSS C interface has the same physical properties as the older SSI interface, simplifying upgrades. BiSS interfaces are based on non-proprietary standards, with support and licenses available from the non-profit BiSS Association e.V. at no charge.

For more information, visit www.posital.com.