Chapter 2 Command System  RIGOL 
DP800 Programming Guide  2-21 
:MMEMory Commands 
 
The :MMEMory commands are used to store the file to the specified external storage directory, read or 
delete the specified file in the external memory as well as query the disk information of the external 
memory.  
 
Command List: 
  :MMEMory:CATalog? 
  :MMEMory:CDIRectory 
  :MMEMory:DELete 
  :MMEMory:DISK? 
  :MMEMory:LOAD 
  :MMEMory:MDIRectory 
  :MMEMory:STORe 
 
 
:MMEMory:CATalog? 
Syntax  :MMEMory:CATalog? 
Description  Query all the files and folders in the current operation directory.  
Explanation  This command is only applicable to external memory. 
 
Return Format  The query returns all the files and folders under the current operation directory, for 
example, RIGOL0.BMP,RIGOL1.BMP,RIGOL2.BMP,cc.RSF.