RIGOL DG4000 Series User Manual

Page 185

RIGOL

DG4000 Series User’s Guide

10-13

MAC Address

MAC (Media Access Control) address, also called hardware address, is used for
defining the position of the network device. For a generator, the MAC address is
always unique. It is always used to identify the instrument while assigning IP
address for instrument. MAC address (48 bits, namely 6 bytes) is usually expressed
in hexadecimal format, such as 00-14-0E-42-12-CF.

VISA Descriptor

VISA (Virtual Instrument Software Architecture) is an advanced application
programming interface developed by NI (National Instrument) for communications
with various instrument buses. It uses the same method to communicate with
instruments regardless of the types of the instrument interfaces (GPIB, USB,
LAN/Ehternet or RS232). The GPIB, USB, LAN/Ethernet or RS232 instrument is
called “resource”.

VISA descriptor is the resource name and describes the accurate name and
location of the VISA resource. If LAN interface is currently used for communication
with the instrument, the VISA descriptor is TCPIP0::172.16.2.13::INSTR.

IP Configure Mode

IP configure mode could be DHCP, AutoIP or ManualIP. If the network is
disconnected currently, there will be nothing to display behind “IP Configure
Mode:”. In different IP configuration modes, the configuration modes of network
parameters (such as IP address) are different.

1. DHCP

 In DHCP mode, DHCP server in the current network assigns LAN

parameters, e.g. IP address, for the generator.

 Press DHCP to select “On” or “Off” to turn DHCP mode on or off.

2. AutoIP

 In AutoIP mode, the generator acquires IP address within 169.254.0.1