Schneider Automation Modicon Quantum Ethernet Uživatelský manuál stáhnout pdf (Strana 67)

100

101

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.

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