17
Interface
English
RS-422/485
D-Sub 9 pin plug connector.
The communication method can be switched between RS-232C and RS-422/
RS-485 via the software.
Interfit bracket is #4-40 (UNC).
Recommendations:
• Cable Connector: XM3D-0921 manufactured by OMRON Corporation.
• Cable Cover: XM2S-0913 manufactured by OMRON Corporation.
• Jack Screw (#4-40 UNC): XM2Z-0073 manufactured by OMRON
Corporation.
Pin
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 – Functional Ground
(Common with SG)
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