National Instruments ENET-232 Series, Руководство пользователя

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© National Instruments Corporation 3-1 ENET-232 and ENET-485 Series User Manual
3
Ethernet Configuration
This chapter describes how to use NI Ethernet device configuration to
configure the network parameters of a serial device server on your subnet.
With it, you can do the following:
• Manually configure the network parameters or enable DHCP
• Verify or change the device hostname
• Add or change a comment to help identify the device
The serial device server must be in network configuration mode before you
can make changes to the network parameters.
Entering Network Configuration Mode
If DHCP is available on your network, it configures the network parameters
for your serial device server at startup. In this case, using NI Ethernet
device configuration is not necessary.
If the serial device server is configured to use DHCP, and DHCP is
unavailable, the unit automatically enters network configuration mode after
a 60 second timeout. The unit must be in this mode before you can make
changes to the network parameters.
You also can enter this mode during normal operation by pressing and
holding the CFG RESET switch for three seconds. Refer to the section
Using the CFG RESET Switch , in Chapter 6, Using Your Serial Device
Server , for more information on using this switch.
While in network configuration mode, the PWR/RDY LED alternates
rapidly between red and yellow, and normal operation is halted.
Note If you only want to view the network configuration settings without making
changes, you do not need to place the unit into network configuration mode. While in
normal operation, you can follow the instructions in the following section,
Using NI
Ethernet Device Configuration , and examine the properties for any National Instruments
Ethernet device on your subnet. However, any changes you attempt to make to the network
parameters while in normal operating mode will not take effect.