---
title: Why we cannot use Balluff IO-LINK capacitive sensor with ordinary 24V output sensors?
description: IO-LINK sensors cannot be used with 24V output sensors
---

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# Why we cannot use Balluff IO-LINK capacitive sensor with ordinary 24V output sensors?

## IO-LINK sensors cannot be used with 24V output sensors

Capacitive sensor with IO-LINK interfaces cannot be used for the normal I/O interface, because the output signal of the IO-LINK is a **digital signal**, instead of 24 VDC I/O signal.![IO-LINK电容传感器](https://kb.innovatingautomation.asia/hs-fs/hubfs/Knowledge%20Base/Simplified%20Chinese/Image/IO-LINK%E7%94%B5%E5%AE%B9%E4%BC%A0%E6%84%9F%E5%99%A8/IO-LINK%E7%94%B5%E5%AE%B9%E4%BC%A0%E6%84%9F%E5%99%A8.png?width=412&name=IO-LINK%E7%94%B5%E5%AE%B9%E4%BC%A0%E6%84%9F%E5%99%A8.png)

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