3-12SectionChecking Communications
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3-10 Creating an IP Address Table
An IP address table is a table of correspondences between node numbers and
IP addresses, and it is used for finding IP addresses from FINS node numbers. It
is necessary to register an IP address table when using the IP address table
method as the method for address conversion. (For details regarding prelimi-
nary procedures, refer to 3-1 Before Operation.)
An IP address table does not necessarily need to be registered in order to use
the combined method for address conversion. If none is registered, however,
the automatic address generation method will always be used.
If the automatic address generation method is to be used exclusively, then there
is no need to register an IP address table. In that case, proceed to 3-11 Creating
an IP Router Table.
The IP address table must be created by a CX-Programmer connected to the
PC. It cannot be created using a Programming Console. For details on how to
connect and use a CX-Programmer, refer to the CX-Programmer User’s
Manual.
3-11 Creating an IP Router Table
An IP router table is a table of correspondences between IP router IP addresses
and the network numbers of segments relayed by the IP router. If the Ethernet
network is configured of multiple segments, an IP router table must be registered
for communications between the segments. (For details on segments and con-
necting nodes, refer to 1-2-2 Node Connections.)
If the Ethernet network has the minimal configuration of just one segment, there
is no need to create an IP router table. In that case, proceed to 3-12 Checking
Communications.
Note An IP router table needs to be created only when the IP address table method or
the combined method is used for address conversion.
The IP router table must be created by a CX-Programmer connected to the PC. It
cannot be created using a Programming Console. For details on how to connect
and use a CX-Programmer, refer to the CX-Programmer User’s Manual.
3-12 Checking Communications
The Ethernet Unit supports the PING command, which is also widely supported
by host computers. It also supports a function for internode testing in the FINS
communications service by simply manipulating bits with a Programming De-
vice.
After the settings and connections have been completed, use either the PING
command or the internode test function as required to check communications
with the remote nodes.
Connecting and Using a
Programming Device for
the PC
Connecting and Using a
Programming Device for
the PC
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