| System Parameters | 
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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.
| Convert all file/program name references to upper/lowercase. | |
| LIST variables in lowercase. | |
| LIST directives in lowercase. | |
| LIST outputs indented program. | |
| Report errors occurring in sub-programs. | |
| Suppress LET in program listing. | |
| Use program caching on LOAD. | |
| Allows extracted records to be read by other PxPlus processes. | |
| Terminates PxPlus when program drops to Command mode. |