encoders

Synchronous Serial Interface (SSI) Protocol for Encoders

This article discusses some of the encoder types, signal types, and wiring needed for synchronous serial interface (SSI) protocol. Many encoders use a form of signal communication called SSI (synchronous serial interface). Although the name contains the term serial, like the common industrial serial RS-232 protocols, this is a simple way to transmit information. This … Read more

An Introduction to Gray Code for Encoders

This article introduces Gray code, a specialized binary arrangement necessary for absolute encoders to communicate with controllers. Computer processors that run virtually all modern control systems speak in a unique language. Values of on/off relate to the ‘binary’ system, usually represented as 1 and 0. This system works well for most industrial sensors, but one … Read more