beautypg.com

KEYENCE N-410 User Manual

Page 37

background image

2-15

2-3

Connecting and Wiring to the N-R4 Series

Inst
allatio

n

2

RS-422A/RS-485 changeover switch and terminating resistance switch

Before using the N-R4, select either RS-422A or RS-485 communication using the switch on the unit.
Moreover, when the N-R4 is located at the end of the communication line, set the terminating
resistance switch (100

) to ON.

Set the switches according to the table below.

* The factory setting is RS-485 communication mode and

terminating resistance OFF.

Number

RS-422A

communication

mode

RS-485

communication

mode

Terminating

resistance

ON

1

Left

Right

2

Left

Right

3

Right