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Ordering Information
Serial Communications Units
Unit
Product name
classi-
fica-
tion
CJ1
Serial Commu-
1 RS-232C port and
CPU
nications Units
1 RS-422A/485 port
Bus
Units
2 RS-232C ports
2 RS-422A/485
ports
Note: 1. The Serial Gateway function is enabled only for Serial Communications Units of unit version 1.2 and later.
2. The no-protocol function is enabled only for Serial Communications Units of unit version 1.2 and later (and a CPU Unit of unit version 3.0
or later is also required).
3. The Modbus-STU Slave function is enabled only for Serial Communications Units of unit version 1.3 and later.
4. When an NT-AL001 RS-232C/RS-422A Conversion Unit is used, this value increases by 0.15 A/Unit. When a CJ1W-CIF11 RS-422A
Conversion Unit is used, it increases by 0.04 A/Unit.
Ethernet Unit
Unit
Product
classi-
name
fica-
Communi-
tion
cations
cable
CJ1
Ethernet
100Base-TX FINS communications service
CPU
Unit
Bus
Unit
FL-net Unit
Unit
Product
classi-
name
fica-
tion
Communi-
cations
interface
CJ1
FL-net Unit
100Base-TX
CPU
Bus
Units
Specifications
Communications
Communications
interface
functions
The following functions
can be selected for each
port:
• Protocol macro
• Host Link
• NT Links (1:N mode)
• Serial Gateway
(See note 1.)
• No-protocol
(See note 2.)
• Modbus-RTU Slave
(See note 3.)
Specifications
Communications
functions
(TCP/IP, UDP/IP), FTP server
functions, socket services, mail
transmission service, mail recep-
tion (remote command receive),
automatic adjustment of PLC
built-in clock, server/host name
specifications
Specifications
Communications
functions
With FL-net Ver. 2.0 spec-
ifications (OPCN-2),
Data links and message
service
No. of unit
Current con-
numbers
sumption (A)
allocated
5 V
1
0.38
(See
note
4.)
0.28
(See
note
4.)
0.38
No. of
Current con-
unit
sumption (A)
num-
Max. Units
bers
mount-
allo-
able per
cated
CPU Unit
4
1
0.37
No. of
Current
unit
consump-
num-
tion (A)
bers
Max. Units
5 V
allo-
mountable per
cated
CPU Units
4
1
0.37
Serial Communications Units
Model
24 V
---
CJ1W-SCU41-V1
CJ1W-SCU21-V1
CJ1W-SCU31-V1
Model
5 V
24 V
---
CJ1W-ETN21
Model
24 V
---
CJ1W-FLN22
Standards
UC1, N, L,
CE
Standards
UC1, N, L,
CE
Standards
UC1, CE
33
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