Device group diagnostics

The Device Groups diagnostic node shows data for the node and for the individual device groups.

The data that is shown for the node includes:

• Data quality icon

• Device group

• Update interval

• Update actual time

• Messages

• Time per message

• Number of items

• Number of active items

• Number of items with errors

• Location

Only the Client Groups and Device Groups nodes show system items.

Note: Items shown below the Device Groups node in the hierarchy depend on how a Communication Driver developer has customized the code and configuration of an individual Communication Driver. Items below the root level in this hierarchy are subject to customization and configuration of individual Communication Driver.

The following table describes the status icons for the normal, warning, and error conditions for the device groups:

Device group items are marked as active if at least one active group item from any active group is referencing the device group items. They are marked as inactive if no active item in any active group is referencing the device group items. Referencing indicates the same fully qualified ItemID/hierarchical name and the same OPC access path/device group.

Data for an individual device group item includes:

• Data quality icon

• Name of the item

• Update actual time

• Number of Messages

• Message

• Time per message

• Read/write status

• Value

• Time

• Quality

• Message ID (MsgID)

• Location

The R/W Status column displays:

• R for read/refresh/property device group items

• W for write device group items

• R/W for both read/refresh/property and write device group items

For more information, see R/W items in diagnostics.

The Location column shows the path of the hierarchical item name.

The following table describes the status icons for the normal, warning, and error conditions for the device group items: