1. INCREMENTAL or ABSOLUTE – Each has a different use. For applications which require position information without a homing process and/or during power loss, Absolute is the way to go. Applications which only require simple pulse count positioning an Incremental is the encoder for you.

2. OPTICAL or MAGNETIC – For higher resolution applications, Optical encoders are recommended; however, both types have their strengths and weaknesses

3. ENVIROMENTAL ISSUES – Every environment provides unique challenges. Whether it’s temperature (hot or cold), dust, debris, fluids or contaminants; we have encoders available with various NEMA (or IP) ratings and housing options that allow them to perform within the harshest of environments.

4. COMMUNICATIONS – Encoders are available with a broad range of communication options; Point to Point, including analog, SSI, ISI, Parallel and more; all major Fieldbus (DeviceNet, ProfiBus, CANOpen ); and industry leading Industrial Ethernet standards (Ethernet/IP, Profinet, EtherCAT). It’s important you get the communication interface that fits with your control system and machine design.