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Serial Interface

NOTE: For instructions on how to connect to other devices, always refer to the

"GP-Pro EX Device/PLC Connection Manual".

GP-4201TM/4301TM: D-Sub 9 pin plug connector via an RS-232C/RS-422/

RS-485 cable.

Interfit bracket is #4-40 (UNC).

DANGER

ELECTRIC SHOCK

The serial port is not isolated. The SG (signal ground) and the FG (frame

ground) terminals are connected inside the unit. When using the SG terminal

to connect an external device to the unit:

• Verify that a short-circuit loop is not created when you set up the system.

• Connect the #5 SG terminal to remote equipment when the host (PLC)

unit is not isolated. Connect the #5 SG terminal to a known reliable

ground connection to reduce the risk of damaging the RS232C/RS422/

RS485 circuit.

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

CAUTION

LOSS OF COMMUNICATION

• All connections to the communication ports must not put excessive stress

on the ports.

• Securely attach communication cables to the panel or cabinet.

Failure to follow these instructions can result in injury or equipment

damage.

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Pro-face PFXGM4201TAD Guida di Installazione Pagina 6