RS-422/485 isolated x 2

Specifications

By factory default, the RS-485 interface is connected on the interface cartridge. Depending on your requirements, you can change the interface to a RS-422 interface included with the product.

After attaching to the unit, right side
After attaching to the unit, left side
Red wire

RS-485 interface cable

RS-422 interface cable

Product number	HMIYP6MPR42P2
Asynchronous transmission	RS-422 (isolated) x 2, RS-485 (isolated) x 2
Data length	7 or 8 bits
Stop bit	1 or 2 bits
Parity	None, odd or even
Flow control	xon/xoff control
Data transmission speed	2,400...115,200 bps
Connector	D-Sub 9 pin (plug)

The serial interface is isolated. The SG (signal ground) and FG (frame ground) terminals are not connected inside this product. When the serial interface connector is D-Sub, connect the FG wire to the shell.

DANGER
ELECTRIC SHOCK AND FIRE 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

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.

NOTICE
BROKEN ENCLOSURE Do not exert more torque than the amount specified. Failure to follow these instructions can result in equipment damage.

NOTE: Use within the rated current.

Pin Assignment

RS-422: D-Sub 9 pin plug connector

Module side:

Pin No.	RS-422
Pin No.	Signal name	Direction	Description
1	TxD-	Output	Send data –
2	TxD+	Output	Send data +
3	RxD+	Input	Receive data +
4	RxD-	Input	Receive data –
5	SG	—	Signal ground (isolated)
6	NC	—	No connection
7	NC	—	No connection
8	NC	—	No connection
9	NC	—	No connection
Shell	FG	—	Frame ground

RS-485: D-Sub 9 pin plug connector

Module side:

Pin No.	RS-485
Pin No.	Signal name	Direction	Description
1	Data–	Input/Output	Communication data –
2	Data+	Input/Output	Communication data +
3	NC	—	No connection
4	NC	—	No connection
5	SG	—	Signal ground (isolated)
6	NC	—	No connection
7	NC	—	No connection
8	NC	—	No connection
9	NC	—	No connection
Shell	FG	—	Frame ground

For both RS-422 and RS-485:

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