878
Network Instructions Section 3-24
(7) The unit address indicates the Unit, as shown in the following table.
(8) The maximum node number depends on the network being used. For a
Controller Link, the allowed range is 00 to 20 hexadecimal (0 to 32). Set
the destination node number to FF to broadcast to all nodes; set it to 00
to transmit within the local node.
(9) When specifying the serial port in the serial gateway function (conversion
to host link FINS), set the destination unit address to the host link unit
number of the destination PLC + 1 (setting range: 1 to 32).
(10) Refer to Automatic Allocation of Communications Ports on page 851 for
details on using automatic allocation of the communications port number
(logical port).
(11) When the destination node number is set to FF (broadcast transmission),
there will be no response even if bits 12 to 15 are set to 0.
Unit Unit address setting
CP1H CPU Unit (Serial Commu-
nications Option Board) or CJ-
series CPU Unit
00 hex
CS/CJ-series CPU Bus Unit 10 hex + unit number
CS/CJ-series Special I/O Unit 20 hex + unit number
CS-series Inner Board E1 hex
Computer 01 hex
Unit connected to network (not
necessary to specify Unit)
FE hex
Direct specification of the serial
port’s unit address
CP1H or CP1L M CPU Unit with Serial Com-
munications Option Board Mounted
Port 1: FD hex (253 decimal)
Port 2: FC hex (252 decimal)
CP1L L CPU Unit with Serial Communica-
tions Option Board Mounted
Port 1: FC hex (252 decimal)
CS/CJ-series Serial Communications Unit
ports
Port 1: 80 hex + 4 × unit number
Port 2: 81 hex + 4 × unit number
CS-series Serial Communications Board
ports
Port 1: E4 hex (228 decimal)
Port 2: E5 hex (229 decimal)
CS/CJ-series CPU Unit ports
Peripheral port: FD hex (253 decimal)
RS-232C port: FC hex (252 decimal)
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