CHAPTER 13 RS-485 COMMUNICATIONS

13.2.11 Wiring (CN3)

Connect to the host controller with marketed LAN cable.

Connect between the host (master) and servo amplifier (slave) so that the output of the host controller

becomes the input of the servo amplifier.

Connect between a servo amplifier (slave) and another servo amplifier (slave) with a straight cable.

The connector is RJ-45 (8 pins). No termination is necessary.

Up to 31 servo amplifiers can be connected.

Host

controller

No terminal

resistor is

needed.

 Pin layout of connector

IN port (CN3A)

8 P5

7 M5(0V)

6 *TXD

5 RXD

4 *RXD

3 TXD

2 M5(0V)

1 P5

(Upper side)

OUT port(CN3B)

8 N.C.

7 M5(0V)

6 *TXD

5 RXD

4 *RXD

3 TXD

2 M5(0V)

1 N.C.

(Lower side)

13

PC Loader Communications 13-45