What Is an EnDat Encoder?
EnDat stands for encoder data. An encoder is a type of sensor that detects movement and generates a digital signal. Encoders are installed in machines that have spindles, measuring wheels or rack-and-pinion mechanisms in factory settings. They are used to measure speed, position and linear movement on a machine. The EnDat encoder was developed by the Heidenhain corporation.
Other People Are Reading
-
EnDat
-
EnDat is a synchronous encoder that has clock signals sent to it by a controller. The device is similar to Synchronous Serial Interface or SSI, which is a digital point-to-point interface that provides one-directional communication at up to 1.5MHz. The EnDat is capable of sending more information at 4MHz because it uses internal memory circuits that can be read and have data written or saved on them by a controller.
Data Type
-
Data that is saved on the EnDat encoder includes diagnostics, identification codes and an alarm status. The controller is capable of setting the encoder's zero reference point; a setting that helps with setting up equipment that the encoder is attached to. The information sent by the EnDat encoder includes on-demand or real-time absolute position data of an instrument.
-
EnDat Components
-
EnDat can have an analog 1-volt, peak-to-peak sine and cosine output that circuits in the controller use to calculate incremental data for real-time control of the encoder. The encoder utilizes a cable, with six to 12 conductors, that is up to 493 feet long.
EnDat 2.2
-
The EnDat version 2.2 is a serial two-directional interface for quick-response drives. Like the original EnDat, the EnDat 2.2 can calculate the absolute position value and access and update information saved in the encoder.
-
References
Resources
- Photo Credit Jupiterimages/Creatas/Getty Images
