> For the complete documentation index, see [llms.txt](https://captic-2.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://captic-2.gitbook.io/docs/overview/hands-on/integrating-your-robot/integration-flow/plcs/allen-bradley.md).

# Allen-Bradley

Connect to Allen-Bradley PLCs over EtherNet/IP.

The Integration Flow connects to Allen-Bradley (Rockwell) PLCs over EtherNet/IP, using CIP to read and write PLC **tags**. You'll find the nodes under **ethernet/ip** in the palette.

## Connect

1. Add an EtherNet/IP endpoint configuration with the PLC's IP address and slot.
2. Use the input node to read a tag and the output node to write one, by tag name.

For node details, see the [upstream documentation](https://flows.nodered.org/node/node-red-contrib-cip-ethernet-ip).

## Data layout

We recommend the [PLC data layout](/docs/overview/hands-on/integrating-your-robot/integration-flow/plcs.md), created as tags.

{% hint style="info" %}
Using another EtherNet/IP device? Contact <support@captic.com> and we'll check it with you.
{% endhint %}