Our default encoding for SLC on z/OS is open-edition 1047 (which differs from EBCDIC-1047 in that characters x15 and x25 are transposed) but you can change the encoding in the CONFIG member of the CNTL data set.
This member looks like this:
- WPS SYSTEM CONFIG FILE CONTAINING SYSTEM OPTIONS
BLKSIZE=27998
BYLINE
CENTER
NOCHARCODE
DATE
DB2SSID=DB2
DKRICOND=ERROR
DKROCOND=WARN
DSNFERR
ENGINE=WPD
NOERRORABEND
FILEUNIT=CYL
FILESPPRI=1
FILESPSEC=1
…
The alternative encoding can be set like this:
ENCODING=EBCDIC1141