Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 1086

Network Instructions
1046
b) Set the destination unit address directly into bits 00 to 07 of C+2. In this
case, set the serial port number in bits 08 to 11 of C+1 to 0 for direct
specification.
Serial Communication Unit ports
Port Port's unit address
Port 1 80 hex + 4
Port 2 81 hex + 4
Serial Communication Board ports
Port Port's unit address
Port 1 E4 hex (228 decimal)
Port 2 E5 hex (229 decimal)
CPU Unit ports
Port Port's unit address
Peripheral FD hex (253 decimal)
RS-232C FC hex (252 decimal)
4. When specifying the serial port without a routing table for the serial gate-
way function (conversion to host link FINS), set the serial port's unit ad-
dress in the destination network address byte.
5. The unit address indicates the Unit, as shown in the following table.
Unit
CPU Unit
CPU Bus Unit
Special I/O Unit (except
C200H-series Special I/O
Units)
Inner Board (CS Series
only)
Computer
Unit connected to net-
work (not necessary to
specify Unit)
Direct specification of the
serial port's unit address
6. 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.
7. Refer to Automatic Allocation of Communications Ports on page 1032 for
details on using automatic allocation of the communications port number
(logical port).
8. 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.
Example: Unit number = 1
unit number 80 + 4
unit number 81 + 4
Unit address setting
00 hex
10 hex + unit number
20 hex + unit number
E1 hex
01 hex
FE hex
Serial Communications Unit ports
Port 1: 80 hex + 4 unit number
Port 2: 81 hex + 4 unit number
Serial Communications Board ports
Port 1: E4 hex (228 decimal)
Port 2: E5 hex (229 decimal)
CPU Unit ports
Peripheral port: FD hex (253 decimal)
RS-232C port: FC hex (252 decimal)
Section 3-25
1 = 84 hex (132 decimal)
1 = 85 hex (133 decimal)