User guide

Chapter 4 Specifications

4-23

Serial Interface (COM2)

This interface is used to connect an RS422 serial cable. A D-sub 9-pin plug connector is used.

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.>

Arrangement

Pin No.

RS422

Signal Name Direction Meaning

1 RDA Input Receive Data A(+)

2 RDB Input Receive Data B(-)

3 SDA Output Send Data A(+)

4 ERA Output Data Terminal Ready A(+)

5 SG - Signal Ground

6 CSB Input Send Possible B(-)

7 SDB Output Send Data B(-)

8 CSA Input Send Possible A(+)

9 ERB Output Data Terminal Ready B(-)

Shell FG -

Frame Ground

(Common with SG)

(GP unit side)