VTI Instruments EX1401, Руководство пользователя

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32 EX1401 Basic Operation
To illustrate the Auto IP mechanism, Table 2-1 lists the Auto IP default address for some example
MAC addresses.
MAC Address Auto IP Default Address
00:0D:3F:01:00:01 169.254.1.1
00:0D:3F:01:01:01 169.254.1.1
00:0D:3F:01:A3:28 169.254.163.40
00:0D:3F:01:FE:FE 169.254.254.254
00:0D:3F:01:FF:FE 169.254.254.254
T
ABLE
2-1: A
UTO
IP D
EFAULT
A
DDRESS
A
SSIGNMENT
If a static IP address assignment is preferred, one can be optionally assigned via the embedded web
page interface. This is done by clicking the
Network Configuration link, disabling DHCP, and
then assigning a static IP address.
However, a much more convenient and recommended way to obtain the benefits of a static IP
address is to employ DHCP, but assign the instrument a reserved IP address in your company’s
DHCP server configuration. This reserved address, linked to the EX1401’s MAC address on the
DHCP server, would be assigned to the EX1401 at power up initialization without having to
manually set it on the EX1401. The DHCP server configuration provides a centralized, controlled
database of assigned IP addresses, preventing accidental assignment of the same IP address to
multiple instruments. Consult your company’s Information Technology department for assistance.
VXI-11, and mDNS Device discovery methods are supported by the EX1401. This allows all
EX1401s on a local network to be found without knowledge of their MAC address or IP address
with the use of a broadcast message. Also, the LCD display on the EX1401 provides the current IP
Address configuration of the instrument, at any given instant. Refer to IPv4 Address in Section 3
for more details on LCD menu operation.
Network Configuration Reset for EX1401
There is no dedicated network reset button on the EX1401. The "menu" button cycles through
different screens on the LCD display. On the LAN Reset page, holding the menu in for more than 4
seconds will initiate a LAN Reset. The screen counts down as you hold in the button, and releasing
the button during this stage will abort the reset operation.
The LAN Reset is useful for recovery from an incorrect or unknown network configuration. Note
that the LXI reset function is not a processor reset or reboot. Initiating a LAN Reset will:
1) Enable DHCP and AutoIP
2) Disable Static IP
3) Set the mDNS hostname and service name to the last user-configured values, or the factory
default values if the user hasn't changed those values
4) Enable IPv6
5) Remove the password (if any)
6) Set the time source to PTPv2 (if it was set to Manual or NTP)
7) Set the LXI event domain to 0
N
ETWORK
T
ROUBLESHOOTING
If an error occurs, when trying to discover the EX1401 you may refer to Common Issues in Section 4
If none of these resolutions help resolve the network connectivity issue, it may be necessary to
change the network settings for the EX1401 and the host PC. By using the following methodology,
most network-related issues can be resolved:
1. Navigate to the IPv4 address status page on the LCD screen using the menu button
2. Note the current IP address and subnet details which are currently assigned to the instrument