Diagnostics (ROS)

Display the status of seen nodes (i.e. stale, error, warn, or OK) from a topic with a ROS DiagnosticArray schema in a running feed, and display the diagnostics data for a given diagnostic_name/hardware_id.

Open a Diagnostics – Summary (ROS) panel to see the status of seen nodes (i.e. stale, error, warn, or OK) in a running feed.

To pin a node to the top of your feed, hover on an entry and click the pin icon that appears.

Use the dropdown menu to select the minimum level by which you want to filter your diagnostics.

Use the search field to fuzzy filter entries by hardware_id and node name. Results will be ordered by how early the search text appears in the matched label.

Click any entry to open a corresponding Diagnostics – Detail (ROS) panel with the clicked node’s relevant details. Alternatively, you can manually open a new Diagnostics – Detail (ROS) panel and input a diagnostic to inspect. The displayed keys and values support rich formatting with basic HTML tags – e.g. <b>, <u>, <table>, etc.

Settings

For the Diagnostics – Summary (ROS) panel:

General
Topic	ROS DiagnosticArray topic to subscribe to for nodes
Sort by level	Toggle whether you want to sort seen nodes by level

For the Diagnostics – Detail (ROS) panel:

General
Topic	ROS DiagnosticArray topic to subscribe to for nodes

Supported messages

To use this panel, your data source must provide messages conforming to one of the following supported schemas.

DiagnosticArray

framework	schema
ROS 1	diagnostic_msgs/DiagnosticArray
ROS 2	diagnostic_msgs/msg/DiagnosticArray