Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual page 1067

Network Instructions
Unit number
Hexadecimal
Decimal
Unit number
Hexadecimal
Decimal
Network Communications
Patterns
1028
d) Inner Board (CS Series only):
e) Computer:
Unit number
(hexadecimal)
00
Unit number +10
E1
01
Note It is also possible to directly specify a serial port (unit address) within the des-
tination device.
Serial Communications Unit
Serial port 1
Serial port 2
Serial Port Unit Addresses:
• Serial Communications Unit ports
Port 1: 80 hex + 4
0 1 2 3
80 84 88 8C
128 132 136 140 144 148 152 156 160 164 168 172 176 180 184 188
Port 2: 81 hex + 4
0 1 2 3
81 85 89 8D
129 133 137 141 145 149 153 157 161 165 169 173 177 181 185 189
• 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)
The following examples show three types of network communications: com-
munications from a PLC to other devices in a network, communications from a
E1 hexadecimal
01
Destination device
Inner Board
Serial port 1
Serial port 2
unit number
4 5 6 7 8
90 94 98 9C A0
unit number
4 5 6 7 8
91 95 99 9D A1
Section 3-25
Node number
Node number
Node number
Node number
CPU Unit
Serial port 2 (Peripheral)
Serial port 1 (RS-232C)
9 A B C D
A4 A8 AC B0 B4
9 A B C D
A5 A9 AD B1 B5
E F
B8 BC
E F
B9 BD