The COMP ID field

CODB commands that display CICSPlex® SM control blocks (such as MODB and MOEB) require you to specify a three-character component ID in the COMP ID field.

For a list of valid component IDs, see Major components of CICSPlex SM and their 3-character identifiers.

When you have specified a component ID, it remains displayed until one of the following occurs:

A new component ID is specified.
The COMP ID field is blanked out.
A memory display is requested.
A command is entered that does not require a component ID.

So it is possible to display various control blocks belonging to a single component by establishing the component ID and then issuing different commands.