The AMCI absolute SSI rotary shaft encoder is a member of the DuraCoder product family. Utilizing the DuraCoder's resolver based sensor technology, this rotary encoder provides unique position data output in relation to the shaft position, with up to 4096 counts per turn. An available multiturn version allows for up to 4096 counts per turn over 4096 turns.

Synchronous Serial Interface (SSI) has been widely accepted for its high throughput, high accuracy and faster response than other means of connecting sensors. All of these products, including the SSI DuraCoders, connect to AMCI’s SSI interface modules or network based interfaces for easy integration into a machine’s automation architecture.

Other features include Reset to zero and Increasing Count direction inputs. An optional reset button allows the Multiturn SSI DuraCoder’s data to be zeroed without the use of any additional programming equipment or wires.

Every SSI DuraCoder can also communicate over a RS485 link. This functionality includes the ability to both read position data from, and write setup data to, the DuraCoder. Single Turn DuraCoders can be programmed for any value between 2 and 4096 counts per turn. Multiturn DuraCoders can be programmed with Number of Turns and Full Scale Count parameters. The Number of Turns can be programmed to be any power of two between 1 and 4096. The Full Scale Count can be programmed to be any value between (Number of Turns) and (Number of Turns * 4096). Free software for setting up the SSI DuraCoder can be downloaded from the website.