# Noise problems when connecting encoder to plc of the robot

**URL:** <https://tech-community.robotics.abb.com/t/noise-problems-when-connecting-encoder-to-plc-of-the-robot/11726>\
**Category:** IRC5\
**Created:** [December 4, 2024, 7:12am UTC](https://tech-community.robotics.abb.com/t/noise-problems-when-connecting-encoder-to-plc-of-the-robot/11726 "2024-12-04T07:12:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![hiep](https://avatars.discourse-cdn.com/v4/letter/h/7cd45c/32.png) [@hiep](https://tech-community.robotics.abb.com/u/hiep)\
**Post date:** [December 4, 2024, 7:12am UTC](https://tech-community.robotics.abb.com/t/noise-problems-when-connecting-encoder-to-plc-of-the-robot/11726/1 "2024-12-04T07:12:12Z")

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Recently, i try to connect encoder to plc of robot(q01u) to try read speed of the conveyor.The problem is the noise from other terminal in plc is really difficult to handle as i dont have experience in this .So anyone has any suggestions or solutions to this.  
the encoder im currently working with is HN3806-ab-600f.Thanks in advance