SYSOUT specification - Key = '0018'

DALSYSOU specifies that a system output data set is to be allocated and defines the output class of the data set. When you code this key and want a class other than the default, # and LEN must be one, and PARM contains the output class. To use the default output class, code zero in the # field; LEN and PARM are not specified. The default output class is determined as follows:

From the OUTPUT DD statement, if present
From the default message class, if there is no OUTPUT DD statement.

DALSYSOU is mutually exclusive with the following text unit keys:

DALSTATS, DALNDISP and DALCDISP
DALVLSER, DALPRIVT, DALVLSEQ, DALVLCNT, and DALVLRDS
DALQNAME
DALSSNM, DALSSPRM, and DALSSATT

Note: Using DALSYSOU with any of these keys will cause dynamic allocation to issue an error code 0380.

Example: To specify a SYSOUT data set in class A, code:

KEY   #     LEN   PARM
0018  0001  0001  C1

Example: To specify a SYSOUT data set and to default the class, code:

KEY   #     LEN  PARM
0018  0000  -    -