Mac Address; Visa Descriptor - Rigol DP800A Series User Manual

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DHCP: in this mode, the DHCP server in the current network assigns

network parameters (such as the IP address) for the instrument. Press
DHCP to enable or disable the DHCP configuration mode. By default, the
DHCP configuration mode is "On".
Auto IP: in this mode, the instrument acquires the IP address from

169.254.0.1 to 169.254.255.254 and subnet mask 255.255.0.0 according to
the current network configuration automatically. Press Auto IP to enable
or disable the auto IP configuration mode. By default, the auto IP
configuration mode is "On".
Note: When the DHCP and auto IP configuration modes are enabled at the
same time, the instrument uses the DHCP configuration mode. Therefore,
to use the auto IP configuration mode, DHCP should be set to "Off".
Manual IP: in this mode, users define the network parameters (such as

the IP address). Press Manual IP to enable or disable the manual IP
configuration mode. By default, the manual IP configuration mode is "Off".
Note: When all the three configuration modes are set to "On", the priority
order of parameter configuration is "DHCP", "Auto IP" and "Manual IP".
Therefore, to use the manual IP configuration mode, DHCP and Auto IP
should be set to "Off".
Tip
When all the three configuration modes are set to "On", the priority order

of parameter configuration is "DHCP", "Auto IP" and "Manual IP".
The three IP configuration modes cannot all be set to "Off" at the same

time.

3. MAC Address

The MAC (Media Access Control) address is also called hardware address and is
used to define the location of the network device. For a power supply, the MAC
address is unique and is usually used to recognize the instrument when
assigning IP address for the instrument. The MAC address (48 bits, namely 6
bytes) is usually expressed in hexadecimal form, for example,
00-2A-A0-AA-E0-56.

4. VISA Descriptor

VISA (Virtual Instrument Software Architecture) is an advanced application
programming interface developed by NI (National Instrument) and is used to
communicate with various instrument buses. It uses the same method to
communicate with the instrument regardless of the type of the instrument
interface (GPIB, USB, LAN/Ethernet or RS232). The instrument communicating
with it via the GPIB, USB, LAN/Ethernet or RS232 interface is called "Resource".
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Chapter 2 Front Panel Operations
DP800A User's Guide