Serial Interface

Introduction

The serial interface is not isolated.

NOTE: For information on how to connect controllers and other types of equipment, refer to the corresponding device driver manual of your screen editing software.

On ST-6200WA, you can switch the communication method between RS-232C and RS-422/RS-485 via the software.

In ST-6•00WA, the SG (signal ground) and FG (frame ground) terminals are separated inside the product.

DANGER
ELECTRIC SHOCK For ST-6•00WA: Make a direct connection between the FG (frame ground) terminal and ground. Do not connect other devices to ground through the FG (frame ground) terminal of this device. Install all cables according to local codes and requirements. If local codes do not require grounding, follow a reliable guide such as the US National Electrical Code, Article 800. Failure to follow these instructions will result in death or serious injury.

DANGER

ELECTRIC SHOCK

For ST-6•00WA:

Make a direct connection between the FG (frame ground) terminal and ground.
Do not connect other devices to ground through the FG (frame ground) terminal of this device.
Install all cables according to local codes and requirements. If local codes do not require grounding, follow a reliable guide such as the US National Electrical Code, Article 800.

Failure to follow these instructions will result in death or serious injury.

In ST-6•00TA, the SG (signal ground) and FG (frame ground) terminals are connected inside the product. When the serial interface connector is D-Sub, connect the FG wire to the shell.

DANGER
ELECTRIC SHOCK AND FIRE For ST-6•00TA: When using the SG terminal to connect an external device to this product: Verify that a ground loop is not created when you set up the system. Connect the SG terminal to remote equipment when the external device is not isolated. Connect the SG terminal to a known reliable ground connection to reduce the risk of damaging the circuit. Failure to follow these instructions will result in death or serious injury.

DANGER

ELECTRIC SHOCK AND FIRE

For ST-6•00TA:

When using the SG terminal to connect an external device to this product:

Verify that a ground loop is not created when you set up the system.
Connect the SG terminal to remote equipment when the external device is not isolated.
Connect the SG terminal to a known reliable ground connection to reduce the risk of damaging the circuit.

Failure to follow these instructions will result in death or serious injury.

CAUTION
LOSS OF COMMUNICATION Do not put excessive stress on the communication ports of all connections. Securely attach communication cables to the panel wall or cabinet. Use a D-Sub 9 pin connector that has jack screws. Failure to follow these instructions can result in injury or equipment damage.

NOTE: Use within the rated current.

RS-232C

D-Sub 9 pin plug connector

Product side:

Pin No.	RS-232C
Pin No.	Signal name	Direction	Meaning
1	CD	Input	Carrier detect
2	RD (RXD)	Input	Receive data
3	SD (TXD)	Output	Send data
4	ER (DTR)	Output	Data terminal ready
5	SG	–	Signal ground
6	DR (DSR)	Input	Data set ready
7	RS (RTS)	Output	Request to send
8	CS (CTS)	Input	Send possible
9	VCC	Output	+5 Vdc ±5% Output 0.25 A^*1
Shell	FG	–	Frame ground^*2

*1 When using RS-232C pin #9, enable VCC with the software.

*2 In ST-6•00TA, common with SG.

Recommended jack screw is #4-40 (UNC).

Recommendations:

Cable Connector: XM3D-0921 manufactured by OMRON Corporation.
Cable Cover: XM2S-0913 manufactured by OMRON Corporation.
Jack Screw (#4-40 UNC): XM2Z-0073 manufactured by OMRON Corporation.

RS-422/485