Unit Number - Omron CJ - REFERENCE MANUAL 02-2010 Reference Manual

• CPU Unit Ports
Port
Peripheral
RS-232C
3 When specifying the serial port without a routing table for the serial gateway function (conversion to host link FINS),
set the serial port's unit address in the source network address byte.
4 When two or more CPU Bus Units are mounted, the network address will be the unit number of the Unit with the low-
est unit number.
5 For a broadcast transmission, set #FF hex.
Set the destination network address to 00 to transmit within the local network.
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).
6 Unit address
• CPU Unit: 00 hex
• CPU Bus Unit: 10 hex + unit number
• Special I/O Unit (except C200H-series Special I/O Units): 20 hex + unit number
• Inner Board: E1 hex (CS Series only)
• Computer: 01 hex
• Unit connected to network: FE hex (not necessary to specify Unit)
Serial port's unit address
• Serial Communications Unit ports
Port 1: 80 hex + 4
Port 2: 81 hex + 4
• 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)
7 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.
Operand Specifications
Word addresses
Area
CIO WR HR
S
D OK OK OK
C
Flags
Name
Error Flag
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Port's unit address
FD hex (253 decimal)
FC hex (252 decimal)

unit number

unit number
AR T C DM EM
OK OK OK OK OK
Label
ER • ON if the serial port number specified in C+2 is not within the range of 00 to 04.
• ON if the Communications Port Enabled Flag is OFF for the communications port number specified in
C+4.
• ON if a FINS command is sent to the local CPU Unit while the File Memory Operation Flag (A34313)
is ON.
• ON if CMND(490) is executed in an interrupt task for a CJ2 CPU Unit with high-speed interrupt func-
tion enabled.
• OFF in all other cases.
Indirect DM/EM
addresses
Con-
stants
@DM *DM
DR
@EM *EM
OK OK --- ---
Operation
3. Instructions
Registers Flags
Pulse
bits
Indirect
IR TK CF
using IR
--- OK --- ---
3
TR
bits
--- ---
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