46
Basic Operating Procedure Section 1-9
CJ-series Serial Communications Unit
1,2,3... 1. Align the connectors properly and then press in on the Unit to connect it.
2. Slide the sliders on the top and bottom of the Unit until they lock the Units
together.
Note If the sliders are not locked properly, the Serial Communications Units may
not function correctly.
Connections Connect the external devices using RS-232C or RS-422A cables. For details
on the connector pin layout and the connection methods, see Section 3 Instal-
lation and Wiring, and refer to the relevant manuals for the external devices to
be connected.
Types of Port for Different Models
The types of port for the different models of Serial Communication Boards
and Units are shown in the following table.
P
A
2
0
5
R
POWER
IN
P
U
T
A
C
1
0
0
-2
4
0
V
L2/N
L1
D
C
2
4
V
A
C
2
4
0
V
O
U
T
P
U
T
R
U
N
PERIPHERAL
ERR/ALM
RUN
INH
COMM
PRPHL
C
O
N
T
R
O
L
L
E
R
C
J
1
G
-
C
P
U
4
4
S
Y
S
M
A
C
P
R
O
G
R
A
M
M
A
B
L
E
P
O
R
T
OPEN
B
U
S
Y
M
C
P
W
R
2
ON
4
TERM
RD2
SD2
RDY
NO.
UNIT
ERH
OFF
WIRE
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
ERC
RUN
SCU41
RD1
TER1
SD1
PORT1
(RS422
/485)
PORT2
Connector
P
A
2
0
5
R
POWER
IN
P
U
T
A
C
1
0
0
-2
4
0
V
L2/N
L1
D
C
2
4
V
A
C
2
4
0
V
O
U
T
P
U
T
R
U
N
PERIPHERAL
ERR/ALM
RUN
INH
COMM
PRPHL
C
O
N
T
R
O
L
L
E
R
C
J
1
G
-
C
P
U
4
4
S
Y
S
M
A
C
P
R
O
G
R
A
M
M
A
B
L
E
P
O
R
T
OPEN
B
U
S
Y
M
C
P
W
R
2
ON
4
TERM
RD2
SD2
RDY
NO.
UNIT
ERH
OFF
WIRE
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
ERC
RUN
SCU41
RD1
TER1
SD1
PORT1
(RS422
/485)
PORT2
Slider
Lock
Release
PLC Series Type of Unit Model Port 1 Port 2
CS Series Serial Communica-
tions Board
CS1W-
SCB21-V1
RS-232C RS-232C
CS1W-
SCB41-V1
RS-232C RS-422A/485
Serial Communica-
tions Unit
CS1W-
SCU21-V1
RS-232C RS-232C
CS1W-
SCU31-V1
RS-422A/485 RS-422A/485
CJ Series CJ1W-SCU21-
V1
RS-232C RS-232C
CJ1W-SCU31-
V1
RS-422A/485 RS-422A/485
CJ1W-SCU41-
V1
RS-422A/485 RS-232C
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