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CJ1W-SCU31-V1 Omron PLC New in box
Item
Description
Device name
Serial Communications Unit
Classification
CPU Bus Unit
Model number
CJ1W-SCU22
CJ1W-SCU32
CJ1W-SCU42
CJ1W-SCU21-V1
CJ1W-SCU31-V1
CJ1W-SCU41-V1
Serial
portsPort 1
RS-232C
RS-422A/485
RS-422A/485
RS-232C
RS-422A/485
RS-422A/485
Port 2
RS-232C
RS-422A/485
RS-232C
RS-232C
RS-422A/485
RS-232C
Protocol
Port 1
Host Link, protocol macro, Serial Gateway, No-
protocol, NT Link, Modbus-RTU Slave, loopback
test , or 1:1 Host Link can be selected for each
port. *1, *2Host Link, protocol macro, NT Link, or loopback test can be
selected for each port.
Unit Ver. 1.2 or later also supports Serial Gateway, no-
protocol, and 1:1 Host Link modes. (Note: The Serial Gateway
can also be executed in protocol macro mode.) *1
Unit Ver. 1.3 or later also supports Modbus-RTU slave mode.Port 2
Number
of
mountable
UnitsCPU Unit
None
CPU Rack
A total of up to 16 Units, including all other
CPU Bus Units. No
restrictions on the mounting location.
However, if an external interrupt task is used,
the Unit must be mounted in one of the
following slots on the CPU Rack.
CJ2H-CPU6[]-EIP CPU Unit: Slots 0 to 3
CJ2H-CPU6[], CJ2M-CPU[][] or CJ1G/H-
CPU[][]H CPU Unit: Slots 0 to 4
CJ1M-CPU[][] CPU Unit: Slots 0 to 2
External interrupt tasks will not be started if
the Unit is mounted to any other slot.A total of up to 16 Units, including all other CPU Bus Units.
No restrictions on the mounting location.Expansion
RackData
exchange
with the
CPU UnitOrdinary
refreshing
of software
switches
and statusAllocated 25 words of the 25 words in the CPU Bus Unit CIO Area (constant data exchange with the CPU Unit)
Transfer
from the
CPU Unit
set by the
systemOf the CPU Bus Unit DM Area, each serial port is allocated 10 words (total 20 words).
Data is transferred from the CPU Unit at the following times:
Startup or restart
Ladder instruction: STUP (237)
Port Settings Changing Flag turns ON (Auxiliary Area)Simple Backup Function
The CPU Unit's Simple Backup Function can be used to backup the Protocol Macro data in the Serial
Communications Unit to the CPU Unit's Memory Card. The backed-up data can be restored or compared.
(The Simple Backup Function can be used with the CJ1-H and CJ1M CPU Units only.)Current consumption
*3280mA+x
400mA
360mA+x
280mA+x
380mA
380mA+x
Weight
160g Max.
120g Max.
140g Max.
110g Max.
110g Max.
110g Max.
General specifications
Conforms to general specifications for CJ Serise.
Extended reading?
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