Managing programs   
12.14 EXTCALL 
  Turning 
668  Operating Manual, 03/2013, 6FC5398-8CP40-3BA1 
 
Software options 
To display the "Local drive" softkey, you require the "Additional HMI user 
memory on CF card of the NCU" option (not for SINUMERIK Operate on 
PCU50 / PC). 
 
 
NOTICE 
 
Possible interruption when executing from USB FlashDrive 
Direct execution from a USB-FlashDrive is not recommended. 
There is no protection against contact problems, falling out, breakage through knocking or 
unintentional removal of the USB-FlashDrive during operation.  
Disconnecting it during operation will result in immediate stopping of the machining and, 
thus, to the workpiece being damaged. 
 
 
 
Machine manufacturer 
Processing EXTCALL calls can be enabled and disabled. 
Please refer to the machine manufacturer's specifications.