System-Related Functions 
  Copyright ©ITECH Electronic Co., Ltd.  109 
Set the Knob Function 
Set  the  knob  setting  function.  If  set  to  ON,  the  Knob  setting  will  take  effect 
immediately. If set to OFF, press Enter to confirm the effect after the Knob setting 
is completed. 
Select Language 
Users can select the instrument language type from the menu. 
Set the Soft Keyboard 
The user can open the soft keyboard in the menu. When the parameter is set to 
ON, the soft keyboard is enabled. And when setting parameters on the screen, 
the soft keyboard appears. Convenient users directly touch screen to select the 
number. 
7.1.2 Set the communication interface 
This  menu  item  is  used  to  set  the  communication  information  between 
instrument and PC. The standard communication interfaces for  IT7900 series 
power supply are USB, LAN and CAN. You can also select the non-standard 
interface GPIB or RS-232 based on personal requirement. 
The user does not need to select the communication interface. The instrument 
will  automatically  select  the  present  communication  mode  according  to  the 
communication interface accessed by the rear panel.The user only needs to set 
the communication parameters and keep them consistent with the PC Settings. 
  NOTE 
⚫  When select USB interface, the USB type need to be DEVICE. 
⚫  The instrument supports the non-standard RS-232 and GPIB interfaces, and 
the configuration items in the menu are dynamically displayed according to 
the interface user selected 
7.1.3 View the System Information 
System  Information  menu  is  used  to  view  the  system  information  of  the 
instrument. Include product model, SN, software version and MAC address. 
7.2 Configuration Menu Reference 
Press [Config] key and enter to configuration menu interface. At this interface, 
user can setup the power supply output parameters, detailed  parameters  are 
shown as follows: 
Configuration menu of source mode: