44
RS-232C Port Wiring (S8M-CP04-R and S8M-CP04-RS Only) Section 3-4
Wiring the RS-232C Port
Terminals
Example Connection to a Host Computer
Example 1:1 Connection Using the RS-232C Port
■ Connection to a Windows Computer
Example 1:1 Connection Using K3SC Serial Adapters
The K3SC Serial Adapters are required when the distance is over 15 m.
• Strip 10 mm from the ends of the RS-
232C cable's wires.
• Press the terminal's release button all
the way in and insert the wire into the
round wire hole. When the wire is
inserted, be sure that the wire conduc-
tor is not exposed.
• Release the release button to lock the
wire in place.
• After wiring, verify that the wires are
securely locked in the terminals.
Press the Release
Button all of the
way in and insert
the wire.
SD RD SG
10 mm
1
2
3
4
5
6
7
8
9
CD
RD
SD
ER
SG
DR
RS
CS
CI
1
2
3
SD
RD
SG
RS-232C
terminals
Name
Pin
Name
Pin
D-Sub 9-pin (male)
D-Sub 9-pin (female)
Windows computer
RS-
232C
inter-
face
S8M
RS-485
DIP SW
SW1-1: OFF
SW1-2: OFF
SW1-3: OFF
SW1-4: OFF
SW1-5: OFF
SW1-6: OFF
SW1-7: OFF
SW1-8: OFF
SW1-9: OFF
SW1-0: OFF
DIP SW
SW1-1: OFF
SW1-2: OFF
SW1-3: OFF
SW1-4: OFF
SW1-5: OFF
SW1-6: OFF
SW1-7: OFF
SW1-8: OFF
SW1-9: OFF
SW1-0: OFF
CD
RD
SD
ER
SG
DR
RS
CS
C1
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
PWR
NC
SG
PWR
SD
RD
1
2
3
4
5
6
1
2
3
PWR
NC
SG
PWR
SD
RD
SD
RD
SG
7
8
9
10
11
12
SG
RDA(-)
SDA(-)
NC
RDB(+)
SDB(+)
7
8
9
10
11
12
SG
RDA(-)
SDA(-)
NC
RDB(+)
SDB(+)
Computer
RS-
232C
inter-
face
Name
Pin
Name
Pin
Name
Pin
Name
Pin
Name
Pin
Name
Pin
K3SC-10
Terminator (100 Ω,
1/2 W recommended)
Note: We recommend twisting
the RS-485
communications lines.
K3SC-10
S8M
Power Supply
AC model:
100 to 240 VAC
DC model:
24 VDC or 24 VAC
(50 to 60 Hz)
RS-
232C
termi-
nals
Power Supply
AC model:
100 to 240 VAC
DC model:
24 VDC or 24 VAC
(50 to 60 Hz)
(See note.)
(See
note.)
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