PSU Series Programming Manual 
120 
SYST:COMM:LAN:GATe “172.16.0.254” 
SYST:REB  
Sets the LAN gateway to 172.16.0.254 and reboot 
the unit to active the setting. 
:SYSTem:COMMunicate:LAN:SMASk 
 
Sets or queries the LAN subnet mask. 
The setting will only be valid after the power has been 
cycled. 
:SYSTem:COMMunicate:LAN:SMASk <string> 
:SYSTem:COMMunicate:LAN:SMASk? 
Subnet mask in string format ( “mask”) 
Applicable ASCII characters: 20H to 7EH 
SYST:COMM:LAN:SMASk “255.255.0.0” 
SYST:REB  
Sets the LAN mask to 255.255.0.0. and reboot the 
unit to active the setting. 
:SYSTem:COMMunicate:LAN:MAC 
 
Returns the unit MAC address as a string. The 
MAC address cannot be changed. 
:SYSTem:COMMunicate:LAN:MAC? 
Returns the MAC address in the 
following format “FF-FF-FF-FF-FF-FF” 
SYST:COMM:LAN:MAC?  
02-80-AD-20-31-B1 
Returns the MAC address. 
:SYSTem:COMMunicate:LAN:DHCP 
 
Turns DHCP on/off. Queries the DHCP status.