Interactive sas call from REXX

[jz1b0c]

/* REXX */
PARM='USER.SASMACRO(SAS1)'
"ALLOC DD(WORK) NEW REU UNIT(VIO) RECFM(F S) LRECL(6144)"
"ALLOC DD(SASAUTOS) DA('PROD.SAS.AUTOLIB') SHR REU"
"ALLOC DD(SASHELP) DA('PROD.SAS.SASHELP') SHR REU"
"ALLOC DD(SASMSG) DA('PROD.SAS.SASMSG') SHR REU"
"ALLOC DD(CONFIG) DA('USER.SYSIN(CONFIG)') SHR REU"
"ALLOC DD(SYSIN) DA('USER.SASMACRO(SAS1)') SHR REU"
"ALLOC DD(INP1) DA('USER.LAAATM01.LIST') SHR REU"
"ALLOC DD(OUT1) DA('USER.SAS1JCL1.OUT2') SHR REU"
"ALLOC DD(SASLOG) DA('USER.SAS1JCL1.SASLOG') SHR REU"
"ALLOC DD(SASLIST) DA('USER.SAS1JCL1.SASLIST') SHR REU"
/* "CALL 'PROD.SAS.LIBRARY(SAS)' '"PARM"'" */
"CALL 'PROD.SAS.LIBRARY(SAS)'"
"FREE DD(WORK SASAUTOS SASHELP SASMSG SASLOG SASLIST SYSIN INP1 OUT1)"
EXIT 0

 

[jz1b0c]

When I execute above rexx, during the SAS call (a panel) SAS screen is displayed, but I would like to execute the sas call in the background without user intervention.