Omron SYSMAC CJ1W-SCU31-V1 User Manual

96
Wiring Section 3-3
3-3-4 Connector Pin Layout
RS-232C Ports 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.
Refer to 2-1 Component Names and Functions for signal precautions.
RS-422A/485 Ports 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.
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.
Pin Abbreviation Signal name I/O
1 FG Shield ---
2 SD Send data Output
3 RD Receive data Input
4 RTS (RS) Request to send Output
5 CTS (CS) Clear to send Input
6 5V Power supply ---
7 DSR (DR) Data set ready Input
8 DTR (ER) Data terminal ready Output
9 SG Signal ground ---
Hood FG Shield ---
Pin Abbreviation Signal name I/O
1 SDA Send data - Output
2 SDB Send data + Output
3 NC Unused ---
4 NC Unused ---
5 NC Unused ---
6 RDA Receive data - Input
7 NC Unused ---
8 RDB Receive data + Input
9 NC Unused ---
Hood FG Shield ---
Receiver
Driver
Pin 1
Pin 2
Pin 6
Pin 8
Terminating resistance: 220 Ω ∗
Terminating resistance switch
2-wire or 4-wire switch
Port 2
∗ When connecting to a MODBUS device, turn OFF the terminating resistance switch and
connect terminating resistance according to the specifications of the external device.
51 KΩ
4.7 KΩ
4.7 KΩ
51 KΩ

Omron SYSMAC CJ1W-SCU31-V1 Specifications

General

Brand	Omron
Model	SYSMAC CJ1W-SCU31-V1
Category	Network Hardware
Language	English