W&T 57630, Руководство пользователя

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16
W&T
Assigning the IP address
2.3 Assigning the IP address through the serial port
After a reset of the Web-IO a time window of approx. 1-2
seconds is made available, during which entering at least 3 „x“
makes it possible to assign a new IP address.
1
In contrast to the previously described method via
ARP, the serial way works regardless of whether the Web-
IO already has an IP address or not. The procedure may be
repeated as often as desired. Therefore you should use this
method if you don‘t know the IP address or have forgotten it.
The appendix to this manual contains a detailed description for
using Windows with Hyperterminal.
First connect the Web-IO to the serial port of a computer. For a
standard PC a
crossed RS232 cable (= null modem cable) is
required (see section Serial connection ).
The serial transmission parameters of the terminal program used
are configured for
9600 baud, no parity, 8 bits, 1 stop bit, no
handshake . Press the reset button on the Web-IO briefly and enter
the letter „x“ at least three times on the terminal until the prompt
IPno.+<Enter>: appears in the terminal program.
Use the conventional format (xxx.xxx.xxx.xxx) to enter the IP
address, and finish your entry with <
Enter >. If the entry was
accepted, the system acknowledges with the assigned IP address.
Otherwise a
FAIL message is issued followed by the last current
IP address.
All additional settings can now be made easily via Web-Based
Management in the browser (see section
Basic setting of the
network parameters ).
2.3.1 Serial assignment of subnet mask and gateway
Together with the IP address, the subnet mask and gateway
address can also be assigned serially. The entry is comma
delineated following the IP address. The following example