Set the maximum number of tasks in a transaction class.
The SET TCLASS command allows you to set the maximum number of tasks in a particular transaction class that are allowed to run concurrently.
This command is limited to the numbered classes of earlier releases of CICS and is retained for compatibility with those releases. The SET TRANCLASS command, described on page SET TRANCLASS, provides the same function and can be used for either the old numbered or new named classes.