Examples

The following steps show how to access data coming from an OPC XML server using N3uron's OPC XML Client module.

• Step 1: Create a module instance (Config => Modules => Model=> New module)

Figure 4. Create a new module

• Step 2: Provide a name for the module (in this case OpcXmlClient), assign the module type (in this case OpcXmlClient), and save the new configuration settings.

Figure 5. Configure the module

• Step 3: Configure the Logger and API sections (the default values are usually sufficient). Save these settings.

• Step 4: Create a new client (Config => Modules => OpcXmlClient => Model => New client).

Figure 6. Create a new client

• Step 5: Provide a name for the client (in this case OpcXmlClient01) and configure as appropriate. For this example. the following settings have been used:
  • Connection
    • Host: 10.101.3.210
    • Port: 80
  • Authentication
    • Username: user
    • Password: n3uron

The rest of the parameters have been left as their default values.

Figure 7. Configure the client

• Step 6: Create a new tag (Config => Tags => Model=> New tag)

Figure 8. Create a new tag

• Step 7: Provide a name for the tag (in this case Tag) and configure it as appropriate. All details regarding communication should be configured in the Source entry.

• Source:
  • Enabled: Yes
  • Module Type: OpcXmlClient
  • Module Name: OpcXmlClient 
  • Config:
    • Client: OpcXmlClient01
    • Address: Random.Item1
    • Array: No
    • Index: 0
    • OPC scan rate: 5000

Figure 9. Tag configuration

• Step 8: The tag should now be available and displaying as good quality in the Real-Time display.

Figure 10. Values displayed in Real-Time