AH500 Hardware and Operation Manual 
 
(3) 
After the users select the CPU (Need Connection) option button, they have to decide whether to back up 
the values in the devices in the AH500 series CPU module which is connected to ISPSoft. 
 
 
(4) 
Select a backup destination. To backup an ISPSoft project, the backup destination must be a computer. 
a.  If the Memory Card (PLC Side) option button is selected, the filename of the backup file which will 
be produced will be AUTOEXEC.dup, and the path which points to the backup file will be Root 
directory of the memory card\AH500\SysDup\AUTOEXEC.dup. 
b.  If the PC (DUP File) option button is selected, the users have to click  , select a folder in the Save 
in drop-down list box in the Save As window, and type a filename in the File name box.