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Mountingandwiring

4.10 RS422/RS485connections(CX51x0N031)

TheCX51x0N031systeminterfaceprovidesanRS422orRS485interface,COM1(X300).Itis

implementedona9poleSubDsocketstrip.Ifmorethanoneinterfaceisrequired,thesystemcanbe

extendedwiththerequirednumberofserialinterfacesusingtheterminalbus(KorEbus)andBus

Terminals(KL/EL6001).Thepinassignmentisshownatthebottomofthepage.

Themaximumbaudrateonbothchannelsis115kbit.Theinterfaceparametersaresetviatheoperating

systemorfromthePLCprogram.

COMinterface(socket)

PinassignmentoftheCOMinterface

PIN Signal Type Description

2 TxD+ DataOut+ Transmit422

3 RxD+ DataIn+ Receive422

5 GND Ground Ground

6 VCC VCC +5V

7 TxD DataOut Transmit422

8 RxD DataIn Receive422

ForRS485pins2and3(data+)mustbeconnected,andpins7and8(data–).

Settingtheinterfaceparameters

Theinterfaceisparameterizedasfollowsinthedeliverycondition:

RS485withoutecho,endpoint(terminated)standardsetting

Function Status

Echoon off

Echooff on

Autosendon on

Alwayssendon off

Autoreceiveon on

Alwaysreceiveon off

Termon on

CX51x040 Version1.0

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Beckhoff CX51x0 Manual do Utilizador Página 40