User manual

Product Description
33002479 06 07/2008 67
Specifying
Address
Parameters
Consult your system administrator to obtain a valid IP address and an appropriate
gateway and a subnet mask, if required. Then use your programming panel to make
the appropriate changes.
BOOTP Server
Responds
If the server responds with address parameters, the NOE 771 xx module will use
those parameters as long as power remains applied to the module.
If the server does not respond, the module will retry its request for two minutes.
BOOTP Server
Does Not
Respond
If no BOOTP response is received, the NOE 771 xx module will use the default IP
Address.
During this time the Run indicator displays a pattern of five flashes for a BOOTP
attempt and six flashes for using the default IP.
NOE 771 xx
Duplicate IP
Address Test
In all cases, when the NOE 771 xx module receives an IP address, it will test for
duplicate addresses by sending broadcast ARP requests three times at 5-second
intervals.
If a Duplicate IP Address is found on the network, the NOE 771 xx will stay off-line
to avoid a network disruption. It will display a pattern of four flashes to indicate a
Duplicate IP Address detection.
Automatic ARP If there are no replies to its requests, the NOE 771 xx automatically sends three
ARP requests at 2-second intervals to announce its presence on the network.