National Instruments ENET-232 Series, Руководство пользователя

Страница: 79 / 237

Using the CFG RESET Switch during Operation
While the serial ENET interface is operational, as indicated by a steady
yellow
PWR/RDY LED, you can use the CFG RESET switch to place the
box into network configuration mode.
This special mode ensures that network parameters are not changed
while in normal operation mode. Because you cannot change the network
parameters unless you deliberately place the serial ENET interface into
network configuration mode, the parameters are protected while in
normal operation. Hosts cannot connect to the serial ENET interface
while it is in network configuration mode.
Note Pressing the CFG RESET switch has no effect if hosts are
currently connected.
Close all connections, then press and hold the CFG RESET switch and
wait approximately three seconds until the
PWR/RDY LED becomes solid
red. If you release the switch prior to three seconds, the serial ENET
interface continues to operate normally.
The PWR/RDY LED goes through the following changes during these
three seconds:
1. The LED begins slowly alternating between red and yellow.
2. The alternating pattern increases in tempo.
3. At three seconds, the
PWR/RDY LED becomes steady red. This
indicates the serial ENET interface is ready to enter network
configuration mode.
4. Now release the CFG RESET switch. The PWR/RDY LED
alternates rapidly between red and yellow to indicate the serial
ENET interface is now in network configuration mode.
This mode remains in effect until you switch off the serial ENET interface
or you use the NI Ethernet Device Configuration utility to change its
network characteristics.