Connector Pin Layout - Omron SYSMAC CS1W-SCB41-V1 Operation Manual

Wiring
3-3-4

Connector Pin Layout

RS-232C Ports
RS-422A/485 Ports
Receiver
Driver
∗ When connecting to a MODBUS device, turn OFF the terminating resistance switch and
connect terminating resistance according to the specifications of the external device.
96
This layout applies to the following ports: ports 1 and 2 of the CS1W-SCB21-
V1/SCU21-V1, ports 1 and 2 of the CJ1W-SCU21-V1, port 1 of the CS1W-
SCB41-V1, and port 2 of the CJ1W-SCU41-V1.
Pin Abbreviation
1 FG
2 SD
3 RD
4 RTS (RS)
5 CTS (CS)
6 5V
7 DSR (DR)
8 DTR (ER)
9 SG
Hood FG
Refer to 2-1 Component Names and Functions for signal precautions.
This layout applies to the following ports: port 2 of the CS1W-SCB41-V1,
ports 1 and 2 of the CS1W-SCU31-V1, ports 1 and 2 of the CJ1W-SCU31-V1,
and port 1 of the CJ1W-SCU41-V1.
Pin Abbreviation
1 SDA
2 SDB
3 NC
4 NC
5 NC
6 RDA
7 NC
8 RDB
9 NC
Hood FG
Note When the 2-wire connections are used, use either pins 1 and 2, or pins 6 and
8.
Refer to 2-1 Component Names and Functions for signal precautions.
The internal circuits are shown in the following diagram.
51 KΩ
4.7 KΩ
4.7 KΩ
51 KΩ
Signal name
Shield
Send data
Receive data
Request to send
Clear to send
Power supply
Data set ready
Data terminal ready
Signal ground
Shield
Signal name
Send data -
Send data +
Unused
Unused
Unused
Receive data -
Unused
Receive data +
Unused
Shield
Terminating resistance: 220 Ω ∗
Terminating resistance switch
2-wire or 4-wire switch
Section 3-3
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Output
Input
Output
Input
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Input
Output
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Output
Output
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Input
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Input
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Port 2
Pin 8
Pin 6
Pin 2
Pin 1
I/O
I/O