# Primary Syntax Elements

System Parameters |

System parameters are internally defined options for setting up a system's operation or behavior under PxPlus. Most act as Boolean switches (0 or negative sign indicates Off; 1 or no sign indicates On); however, some require specific values in order to be set.

Below is a list of some commonly used system parameters. For a list of all system parameters, see System Parameters List.

'FU' and 'FL' | Convert all file/program name references to upper/lowercase.
'LC' | LIST variables in lowercase.
'LD' | LIST directives in lowercase.
'LE' | LIST outputs indented program.
'NE' | Report errors occurring in sub-programs.
'NL' | Suppress LET in program listing.
'PC'= | Use program caching on LOAD.
'XI' | Allows extracted records to be read by other PxPlus processes.
'XT' | Terminates PxPlus when program drops to Command mode.