In SAS®9 and later, when CPU time is exceeded, a system abend EC6 with reason code 0000FD1D is generated.

In previous versions of the SAS System, a system abend 322 is returned. This is due to the way IBM treats CPU exceeded situations in USS (Unix System Services) processes. SAS®9 is a dubbed USS task.

This is documented in the following migration and compatibility web pages for z/OS.