User guide

GP3000 Series Hardware Manual

4-6

4.1.3 Interface Specifications

This section describes the specifications of each interface of the GP Series unit.

 Serial Interfaces

Serial Interfaces (COM1)

This interface is used to connect an RS232C/RS422/RS485

cable. D-sub 9-pin plug connector is used.

• For instructions on how to connect to other devices, always refer to the “GP-Pro EX

Device/PLC Connection Manual”.

• Always connect the #5 SG (Signal Ground) of the GP unit to the connected device,

especially if the connected device is also not isolated. Failure to do so may damage

the RS232C/RS422/RS485 circuit.

• When connecting an external device to the GP using the SG terminal, be sure to

check that no short-circuit loop is created when you setup the system.

• When isolation is necessary, you can use the RS232C isolation unit (CA3-ISO232-01) on

COM1.

*1 Communication method is switched via software.

GP Connector XM2C-0942-502LX <OMRON Co.>

Interfit Bracket #4-40(UNC)

Recommended Cable Connector XM2D-0901 <OMRON Co.>

Recommended Cable Cover XM2S-0913 <OMRON Co.>

Recommended Jack Screw

(#4-40 UNC)

XM2Z-0073 <OMRON Co.>