1-4 Remote Programming Setup and Interface Chapter 1 — General Information
1-4 PN: 10580-00341 Rev. C MS2720T PM
Dynamic Host Configuration Protocol (DHCP) is an Internet protocol that automates the
process of setting IP addresses for devices that use TCP/IP, and is the most common method
of configuring a device for network use.
To determine if a network is set up for DHCP, connect the instrument to the network and
select DHCP protocol in the Ethernet Config menu. Power cycle the instrument. If the network
is set up for DHCP, the assigned IP address should be displayed briefly after the power-up
sequence.
To display the IP address of the instrument, press the Shift key followed by System (8), then
the System Options soft key and Ethernet Config.
USB Interface Connection and Setup
The Universal Serial Bus (USB) architecture is a high-performance networking standard that
is considered “plug and play” compatible. The USB driver software is automatically detected
and configured by the operating system of the devices that are connected to the bus. The
instrument conforms to the USB 2.0 standard and is a USB “full-speed” device that supports
data rates of up to 10 Mbps with the following restrictions:
• One USB network can support up to 127 devices.
• The maximum length of USB cables between active devices is 5 meters for USB 2.0 and
3 meters for USB 1.0.
You must have NI-VISA 2.5 or later installed on the controller PC and you must select the
VISA library (visa32.dll) as a reference in a Visual Basic project. For remote USB control, the
controlling PC must have a version of VISA installed that supports USBTMC (USB Test and
Measurement Class) devices.
The USB 2.0 Mini-B device connector can be used to connect the MS2720T directly to a PC.
The first time the instrument is connected to a PC, the normal USB device detection by the
computer operating system takes place.
1. Power on the instrument and controller PC and wait for the systems to power up
completely.
2. Connect the USB cable mini-B connector to the instrument.
Note
An active Ethernet cable must be connected to the instrument before it is turned
on in order to enable the Ethernet port for DHCP or for a static IP address.
Depending on local conditions, the port may remain enabled when changing from
DHCP to static IP address, when changing from static IP address to DHCP, or
when temporarily disconnecting the Ethernet cable.
If the port becomes disabled, verify that an active Ethernet cable is attached to the
instrument, then cycle the power off and back on.
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