Spin data set specification - Key = '8013'

DALSPIN specifies whether the output for the SYSOUT data set is to be printed immediately upon unallocation of the data set, or at the end of the job.

When you code DALSPIN, # and LEN must be 1; PARM must contain one of the following:
X'80'
Data set available for printing when it is unallocated
X'40'
Data set available for printing at the end of the job.
Example: To specify that the output be printed at the end of the job, code:
KEY    #     LEN   PARM
8013   0001  0001  40