The EL5101 module from Beckhoff is a digital input terminal for use with their programmable logic controllers (PLCs). Beckhoff is a well-known manufacturer of industrial automation products, including PLCs.

The EL5101 module is specifically designed to interface with digital input signals in automation systems. It allows the PLC to monitor the state of external devices, such as sensors or switches, and use that information in the control program. The module supports a wide range of input signal types, including standard binary signals and signals from encoders and proximity switches.

The EL5101 module has several features that make it suitable for industrial applications. It has a high sampling rate, which allows for precise monitoring of fast-changing signals. The module also supports the connection of multiple input channels, and each channel can be individually configured for different signal types and filtering options. This flexibility makes it versatile and adaptable to different automation requirements.