The DataHub Service is a distributed data aggregation and communication solution designed for large-scale industrial applications. It enables multiple independent applications to publish and consume real-time data, device states, and alarm events through an optimized, subscription-based architecture. In summary, this TagProvider Connection enables multiple runtime solutions to share and access tag, device, server, info, and alarm namespaces. It uses a TCP-based connection, listening on port 30001 by default. Each runtime configures its access through an alias and an optional access key.
On this page:
Configuration
To configure the Data Hub Service as a TagProvider, navigate to Unified Namespace → TagProvider Connections and select the Hub for Server Communication option.
Connection Parameters
Field | Description |
|---|---|
Provider | Specifies the system the TagProvider will interface with. In this case, it interfaces with the Hub for Server Communication. |
Access Mode | Determines permissions for interacting with tags. Read allows data reading. Write permits data writing. ReadWrite enables both reading and writing. |
Name | Identifies the tag provider connection. Differentiates multiple connections within the system. |
Description | Provides details about the connection. Helps users understand its purpose. |
Connection | Shows the parameters used for establishing the connection. |
Listening Port | Specifies the port for communication. Directs network traffic through the assigned port. |
AccessKey | Manages authentication for the connection. Protects access based on security requirements. |
Deployment
The solution deployment follows this workflow:
- Server Configuration: Navigate to Unified Namespace/TagProvider Connections and configure a new connection using the DataHub Service provider, specifying the listening port and access key. This will be the instance to which the client will connect.
- Client Configuration: Navigate to Runtime/Startup/Execution Environment and enable the "Publish to DataHub Service" checkbox option. Click on the gear icon to open the DataHubService Settings dialog, and inform the IP Address configured on the DataHub Service.
- Runtime Startup: Both the server and clients must be running. Clients connect and begin publishing data to the DataHub Service.
- Testing: On the solution with the configured DataHub Service, navigate to Unified Namespace/Connection Monitor and check if the Client data is available.
In this section: