FieldServer Omron FINS FS-8704-16, Driver Manual

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FS-8704-16 Omron FINS Manual Page 4 of 37
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4. Is the Network healthy?
1.04 Example of Omron PLC Configuration using Omron ETN11 Module.
1
Setting the Node Number
With the FINS communications service, when there are multiple Ethernet Units connected to the
Ethernet network, the Ethernet Units are identified by node numbers. Use the node number switches
to set the node number between 01 and 7E hexadecimal (1 to 126 decimal). Do not set a number
that has already been set for another node on the same network.
The left switch sets the sixteens digit (most significant digit) and the right switch sets the ones digit
(least significant digit). The node number is factory set to 01. When using the automatic generation
method for address conversion, set the node number to the same value as that of the local IP
address switches. If this is not possible, then either the IP address table method or the combined
method must be used for address conversion. For details, refer to
4-2 CPU
Bus Unit System Setup
. If the FINS communications service is not being used over the Ethernet
network, then there is no problem if the node number duplicates that of another Ethernet Unit. The
node number must still be set from 01 to 7E, however, or the ERC indicator will light.
Note
Turn OFF the power supply before setting the node number.
Setting the Local IP Address
The nodes on an Ethernet network are identified by IP addresses. Each IP address is set with 32 bits
of binary data. These 32 bits are divided into four 8- bit fields called octets, and each octet is
expressed as four decimal numbers. At CS-series Ethernet Units, four bits are expressed as a
hexadecimal digit, and the eight hexadecimal rotary switches (the local IP address switches) on the
back of the Unit are used to set the local IP address. Set the eight switches in hexadecimal as shown
below, combining SW1 and SW2, SW3 and SW4, SW5 and SW6, and SW7 and SW8. Each switch
can be set from 0 to F.
1
The following notes are extracted from the Omron Manual “ W343-E1-05
9/03”