Instruction Manual

2-19

2-4 NX-50RS Connections and Wiring

Installation

 Wiring an RS-485 controller (NX-50RS)

The wiring for the NX-50RS field network connector is as follows.

RS-485 connector cables can be up to 1.2 km long.

Example connection

When connecting an NX-50RS to a network pin, turn the terminator switch on.

Signal

Name

Explanation

485+ Data communication + side

485- Data communication - side

SG Signal ground

485+

485–

Not used

Note

Twist pair cable for RS-485

RS-232C cable

OP-29860

Recommended RS-485 cable

Maker: Furukawa Electric Co., Ltd.

Part name: Instrumentation cable

Model: KPEV-SB(1P) 0.75 mm

Importa