40
Settings for Sending FINS Commands Section 3-4
Unit Address
For a PLC, an address that identifies the specific Unit that is participating in
the communication in the PLC. For a host computer, an address that identifies
the specific application that is participating in the communication in the com-
puter.
PLC
Node address: 5
Ethernet network
Network address 1
PLC
Node address: 8
Node address: 8
PLC
Node address: 2
PLC
Node address: 3
Computer
Node address: 1
Computer
Node address: 11
PLC
Node ad-
dress: 7
Controller Link Unit
Unit address: 12 Hex
Ethernet Unit
Unit address:
15 Hex
Controller Link Network
Network address 2
Communications Unit
(Controller Link Unit)
Unit address: 12 Hex
CPU Unit
Unit address:
0 Hex
Serial Communications Unit
RS-232C port on
CPU Unit
Serial
communications
(Host Link)
Unit address of
serial port 2 of the
Serial Communi-
cations Unit: 81
Hex + 04 Hex ×
unit number
PLC
Node address: 5
PLC
Node address: (Host
Link unit number (0
to 31) + 1
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