# Connect to Industrial Gateway OPC Server

## Anonymous Login

1. Double click on the Industrial Gateway OPC Server icon in the system tray, open the  **Project** -> **Property Editor** -> **OPC UA**, and set **Allow anonymous login** to **Yes**.
![igs-1_en](./assets/igs-1_en.jpg)

2. Right-click the Industrial Gateway OPC Server icon in the system tray, select **OPC UA Configuration** -> **Server Endpoint**, double-click the endpoint entry, and check all security policies.
![igs-2_en](./assets/igs-2_en.jpg)

3. Right-click on the Industrial Gateway OPC Server icon in the system tray and select **Reinitialize** in the menu.

4. Neuron adds a new southbound OPC UA device, opens **Device Configuration**, fills in the **Endpoint URL** of the target Server, without filling in username/password, without adding certificate/key, and starts the device connection.

## Certificate/Key + Anonymous Login

1. Set up an anonymous login as described above.

2. Refer to the [Connection policy](./policy.md) to generate or convert a certificate/key.

3. Right-click the Industrial Gateway OPC Server icon in the system tray, select **OPC UA Configuration** -> **Trusted Clients**, and import the client certificate in DER format into the list.

  ![](./assets/igs-3_en.jpg)

4. Right-click on the Industrial Gateway OPC Server icon in the system tray and select **Reinitialize** in the menu.

## Configure Neuron

1. Get the PLC measurement point information via the UaExpert software, refer to [UaExpert](./uaexpert.md).
![igs-4_en](./assets/igs-4_en.jpg)

2. Neuron adds a new southbound OPC UA device, opens **Device Configuration**, fills in the **Endpoint URL** of the target Server, does not need to fill in the username/password, adds the certificate/key.

3. Change the **Update Mode** to Subscribe or Read&Subscribe to obtain data via OPC UA subscription.

4. Starts the device connection.

5. Add **Groups** and **Tags** based on the measurement point information.

## Test Data List

| Name             | Address | Attribute | Data type |
| -------- | ------------------------------------------ | ---------- | ------ |
| BuildDate        | 0!2266  | Read      | UINT32    |
| BuildNumber      | 0!2265  | Read      | STRING    |
| ManufacturerName | 0!2263  | Read      | STRING    |
| ProductName      | 0!2261  | Read      | STRING    |
| ProductUri       | 0!2262  | Read      | STRING    |
| SoftwareVersion  | 0!2264  | Read      | STRING    |