User Manual

Interface

English

3. RS-422/485

D-Sub 9 pin plug connector via an RS-422/485 cable.

Interfit bracket is #4-40 (UNC).

Recommendations:

• Cable Connector: XM2D-0901 manufactured by OMRON Corporation.

• Cable Cover: XM2S-0913 manufactured by OMRON Corporation.

• Jack Screw (#4-40 UNC): XM2Z-0073 manufactured by OMRON

Corporation.

Number

RS-422/RS-485

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)