45
RS-232C Port Wiring (S8M-CP04-R and S8M-CP04-RS Only) Section 3-4
Example 1:N Connection Using K3SC Serial Adapters
Note When connecting and communicating with multiple S8Ms in this way, a unique
unit number must be set on each S8M. (For details on setting the unit number,
refer to pages
67 and 87.)
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(+)
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
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(+)
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.)
Name
Pin
Name
Pin
Name
Pin
Note: We recommend twisting
the RS-485
communications lines.
K3SC-10
S8M
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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