# EtherNet/IP

EtherNet/IP is an industrial network protocol that adapts the Common Industrial Protocol to standard Ethernet. EtherNet/IP is one of the leading industrial protocols in the United States and is widely used in a range of industries including factory, hybrid and process.

* [Connection Properties](https://docs.cybus.io/connectors/shop-floor-connectors/ethernet-ip/ethernetipconnection)
* [Endpoint Properties](https://docs.cybus.io/connectors/shop-floor-connectors/ethernet-ip/ethernetipendpoint)

### Input Format on Write

When writing data, a JSON object with the following structure should be sent to a write endpoint (`/set`):

{% code lineNumbers="true" %}

```json
{ "id": "<correlation id>", "value": "<value>" }
```

{% endcode %}

### Output Format on Write

When writing data, the result of the operation will be published to a `/res` topic with the following structure:

{% code lineNumbers="true" %}

```json
{ "id": "<correlation id>", "timestamp": "<msSinceEpoch>", "result": "<result>" }
```

{% endcode %}

### Output Format on Read

When data is read from a read endpoint (`/req`), the following JSON is returned as a response in a `/res` topic:

{% code lineNumbers="true" %}

```json
{ "id": "<correlation id>", "timestamp": "<msSinceEpoch>", "value": "<value>" }
```

{% endcode %}

### Output Format on Subscribe

When data is read by means of a subscription endpoint, the following JSON is returned as a response:

{% code lineNumbers="true" %}

```json
{ "id": "<correlation id>", "timestamp": "<msSinceEpoch>", "oldValue": "<old value>", "value": "<value>" }
```

{% endcode %}

## Service Commissioning File Example

{% file src="<https://2355450750-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGzXPesVecsUM1eHBfwea%2Fuploads%2Fgit-blob-1efc6457e68ca07e41783c36ffb280c7b5dfa6c4%2FethernetIp-example.yml?alt=media>" %}

{% code title="ethernetIp-example.yml" lineNumbers="true" %}

```yaml
description: >
  Sample EtherNet/IP service commissioning file

metadata:
  name: Sample EtherNet/IP service
  icon: https://www.cybus.io/wp-content/uploads/2017/10/for-whom1.svg
  provider: cybus
  homepage: https://www.cybus.io
  version: 1.0.0

parameters:
  host:
    type: string
    default: 127.0.0.1
  initialReconnectDelay:
    type: integer
    default: 1000
  maxReconnectDelay:
    type: integer
    default: 30000
  factorReconnectDelay:
    type: integer
    default: 2

resources:
  ethernetIpConnection:
    type: Cybus::Connection
    properties:
      protocol: EthernetIp
      connection:
        host: !ref host
        connectionStrategy:
          initialDelay: !ref initialReconnectDelay
          maxDelay: !ref maxReconnectDelay
          incrementFactor: !ref factorReconnectDelay

  sampleSubscription:
    type: Cybus::Endpoint
    properties:
      protocol: EthernetIp
      connection: !ref ethernetIpConnection
      subscribe:
        tagName: dn_count
        programName: SimulationMain

  sampleRead:
    type: Cybus::Endpoint
    properties:
      protocol: EthernetIp
      connection: !ref ethernetIpConnection
      read:
        tagName: dn_count
        programName: SimulationMain

  sampleWrite:
    type: Cybus::Endpoint
    properties:
      protocol: EthernetIp
      connection: !ref ethernetIpConnection
      write:
        tagName: dn_count
        programName: SimulationMain
        tagType: DINT
```

{% endcode %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.cybus.io/connectors/shop-floor-connectors/ethernet-ip.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.