# Search\_1D

**URL:** <https://tech-community.robotics.abb.com/t/search-1d/10974>\
**Category:** RobotStudio\
**Created:** [January 5, 2023, 8:52am UTC](https://tech-community.robotics.abb.com/t/search-1d/10974 "2023-01-05T08:52:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![JBenes](https://avatars.discourse-cdn.com/v4/letter/j/54ee81/32.png) [@JBenes](https://tech-community.robotics.abb.com/u/JBenes)\
**Post date:** [January 5, 2023, 8:52am UTC](https://tech-community.robotics.abb.com/t/search-1d/10974/1 "2023-01-05T08:52:14Z")

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Good day everyone,  
I have a question about SmartTag.  
In the RS program, I search using the SearchL\SStop instruction and use the collision sensor, so everything goes well. The simulation will run correctly.  
But in the part of the program I search using the Search\_1D pEX1 instruction and here it does not detect the same part for me and the simulation does not work.  
SearchL uses doFr1TouchSense  
Search\_1D uses doFr1SensorRef  
Does anyone have experience with this?  
In the signal analyzer, in the simulation, the output doFr1SensorRef does not switch to 0 after contact.