SYSTem:COMMunicate:LAN:CONTrol?
Reads the initial Control connection port number for Sockets communications. This connection is used to
send and receive commands and queries.
Parameter Typical Return
(none) 5000 (0 if the interface does not support sockets)
Return the Control connection port number:
SYST:COMM:LAN:CONT?
l Use the Control socket connection to send a Device Clear (DCL) to the instrument or to detect
pending Service Request (SRQ) events.
l On the 34460A, this requires option 34460A-LAN or option 3446LANU.
SYSTem:COMMunicate:LAN:DHCP {ON|1|OFF|0}
SYSTem:COMMunicate:LAN:DHCP?
Disables or enables instrument's use of DHCP. The acronym DHCP stands for Dynamic Host Configuration
Protocol, a protocol for assigning dynamic IP addresses to networked devices. With dynamic addressing, a
device can have a different IP address every time it connects to the network.
ON: instrument tries to obtain an IP address from a DHCP server. If a DHCP server is found, it assigns a
dynamic IP address, Subnet Mask, and Default Gateway to the instrument.
OFF or DHCP unavailable: instrument uses the static IP address, Subnet Mask, and Default Gateway dur-
ing power-on.
If you change this setting, you must send SYSTem:COMMunicate:LAN:UPDate to activ-
ate the new setting.
Parameter Typical Return
{ON|1|OFF|0}. Default: ON. 0(OFF)or1(ON)
Disable DHCP:
SYST:COMM:LAN:DHCP OFF
SYST:COMM:LAN:UPDate
l Most corporate LANs have a DHCP server.
l SYSTem:SECurity:IMMediate sets this parameter to its default value.
l On the 34460A, this requires option 34460A-LAN or option 3446LANU.
l If a DHCP LAN address is not assigned by a DHCP server, then an Auto-IP address is obtained after
approximately 2 minutes. An Auto-IP address has the form 169.254.nnn.nnn.
l This setting is non-volatile; it is not changed by power cycling, a Factory Reset (*RST), or an Instru-
ment Preset (SYSTem:PRESet).
SCPI Programming Reference
408
Keysight Truevolt Series Operating and Service Guide
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