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Article Data
Article Ref
2100-EAKV-8061
Date Created
Fri, 28th Feb 2014
Date Modified
Mon, 7th Jul 2014

   Purpose of encoder index pulse (Z)

Question 

What does the encoder index pulse (Z) do?

Answer 

Sensor Model All
Firmware Version 3.x
SDK Version n/a

The Z (index) signal is triggered once every revolution of the encoder. This signal is typically used for aligning data in a rotational application. When the Z signal is connected, Gocator would capture the encoder tick at which the Z index occured and send it out over Ethernet. 

The encoder value at the last encoder index (last Z pulse) can also be retrieved in the SDK via the function call:

GO2_EXPORT(Go2Int64) Go2Data_EncoderIndexValue(Go2Data data);