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2-24 TCP/IP Ethernet Communications User’s Manual – January 1996
GFK-1004B
Procedure 5: Testing the Ethernet Interfaces on the Network
This procedure shows you how to verify operation of the physical network to provide
the necessary foundation for reliable communications.
This procedure will ensure that:
The cable plant is functional,
The physical connection of each node is functional,
All transmission paths meet or exceed the expected low bit error rate.
When you are testing the network, be sure there is an adequate explanation for any-
thing unusual. Logging of exceptions should be the exception, not the rule. Properly
setup nodes and networks can run for long periods (weeks or months) without logging
exceptions.
Field Network Test Utility
This section describes the use of the Field Network Test Utility that is built into the
Ethernet Interface.
All software and configuration needed to perform these tests is contained in the Ether-
net Interface as it is shipped from the factory. You do not need to download the commu-
nications software from the GSM for these tests, however, you may optionally change
Soft Switch parameters as described previously. (However, if you have loaded commu-
nications software, the Field Network Test Utility will still operate properly, and the soft-
ware you loaded will be preserved.) The default parameters provided will work on any
network with up to 50 nodes. For larger networks, consult GE Fanuc Automation – NA if
you need assistance to determine how to test your network.
Note
After you have established confidence in your particular application and
configuration parameters, you can periodically re–test your physical
network while the applications are running. This is done by using the TEST
Station Manager command, but without invoking the Field Network
Test Utility. All the Station Manager commands available in Field
Network Test Utility are also available when the Ethernet Interface is
fully operational.