# signal pass through

**URL:** <https://forum.deltamotion.com/t/signal-pass-through/163>\
**Category:** RMCTools\
**Created:** [January 13, 2012, 4:10pm UTC](https://forum.deltamotion.com/t/signal-pass-through/163 "2012-01-13T16:10:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Chuck](https://forum.deltamotion.com/letter_avatar_proxy/v4/letter/c/8e7dd6/32.png) [@Chuck](https://forum.deltamotion.com/u/Chuck)\
**Post date:** [January 13, 2012, 4:10pm UTC](https://forum.deltamotion.com/t/signal-pass-through/163/1 "2012-01-13T16:10:16Z")

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Is there a way to take one of my feedback loops (4-20mA) and send it out through one of the analog outputs to an external chart recorder?

Thanks,

Chuck

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**Author:** ![Jacob\_Paso](https://forum.deltamotion.com/letter_avatar_proxy/v4/letter/j/439d5e/32.png) [@Jacob\_Paso](https://forum.deltamotion.com/u/Jacob_Paso)\
**Post date:** [January 13, 2012, 5:18pm UTC](https://forum.deltamotion.com/t/signal-pass-through/163/2 "2012-01-13T17:18:53Z")

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The analog outputs are +/- 10 V. If you need 4-20 mA, you would need to convert it to current externally. If the chart recorder accepts voltage, you can use an analog ouput directly, in which case you would make a user program that continuously sends a voltage that is calculated from the 4-20 mA feedback. For example:

 ![program.png](https://forum.deltamotion.com/uploads/default/original/1X/c04c146bafb53d4c7f0f9db62662d77bf0c05543.png)